28935480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:91

約数の個数: 256

約数和(自身を含む): 109440000

約数和(自身を除く): 80504520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 37, 38, 40, 42, 49, 56, 57, 60, 70, 74, 76, 84, 95, 98, 105, 111, 114, 120, 133, 140, 147, 148, 152, 168, 185, 190, 196, 210, 222, 228, 245, 259, 266, 280, 285, 294, 296, 343, 370, 380, 392, 399, 420, 444, 456, 490, 518, 532, 555, 570, 588, 665, 686, 703, 735, 740, 760, 777, 798, 840, 888, 931, 980, 1029, 1036, 1064, 1110, 1140, 1176, 1295, 1330, 1372, 1406, 1470, 1480, 1554, 1596, 1715, 1813, 1862, 1960, 1995, 2058, 2072, 2109, 2220, 2280, 2590, 2660, 2744, 2793, 2812, 2940, 3108, 3192, 3430, 3515, 3626, 3724, 3885, 3990, 4116, 4218, 4440, 4655, 4921, 5145, 5180, 5320, 5439, 5586, 5624, 5880, 6216, 6517, 6860, 7030, 7252, 7448, 7770, 7980, 8232, 8436, 9065, 9310, 9842, 10290, 10360, 10545, 10878, 11172, 12691, 13034, 13720, 13965, 14060, 14504, 14763, 15540, 15960, 16872, 18130, 18620, 19551, 19684, 20580, 21090, 21756, 22344, 24605, 25382, 26068, 27195, 27930, 28120, 29526, 31080, 32585, 34447, 36260, 37240, 38073, 39102, 39368, 41160, 42180, 43512, 49210, 50764, 52136, 54390, 55860, 59052, 63455, 65170, 68894, 72520, 73815, 76146, 78204, 84360, 97755, 98420, 101528, 103341, 108780, 111720, 118104, 126910, 130340, 137788, 147630, 152292, 156408, 172235, 190365, 195510, 196840, 206682, 217560, 241129, 253820, 260680, 275576, 295260, 304584, 344470, 380730, 391020, 413364, 482258, 507640, 516705, 590520, 688940, 723387, 761460, 782040, 826728, 964516, 1033410, 1205645, 1377880, 1446774, 1522920, 1929032, 2066820, 2411290, 2893548, 3616935, 4133640, 4822580, 5787096, 7233870, 9645160, 14467740, 28935480]

約数ペア:

[(1, 28935480), (2, 14467740), (3, 9645160), (4, 7233870), (5, 5787096), (6, 4822580), (7, 4133640), (8, 3616935), (10, 2893548), (12, 2411290), (14, 2066820), (15, 1929032), (19, 1522920), (20, 1446774), (21, 1377880), (24, 1205645), (28, 1033410), (30, 964516), (35, 826728), (37, 782040), (38, 761460), (40, 723387), (42, 688940), (49, 590520), (56, 516705), (57, 507640), (60, 482258), (70, 413364), (74, 391020), (76, 380730), (84, 344470), (95, 304584), (98, 295260), (105, 275576), (111, 260680), (114, 253820), (120, 241129), (133, 217560), (140, 206682), (147, 196840), (148, 195510), (152, 190365), (168, 172235), (185, 156408), (190, 152292), (196, 147630), (210, 137788), (222, 130340), (228, 126910), (245, 118104), (259, 111720), (266, 108780), (280, 103341), (285, 101528), (294, 98420), (296, 97755), (343, 84360), (370, 78204), (380, 76146), (392, 73815), (399, 72520), (420, 68894), (444, 65170), (456, 63455), (490, 59052), (518, 55860), (532, 54390), (555, 52136), (570, 50764), (588, 49210), (665, 43512), (686, 42180), (703, 41160), (735, 39368), (740, 39102), (760, 38073), (777, 37240), (798, 36260), (840, 34447), (888, 32585), (931, 31080), (980, 29526), (1029, 28120), (1036, 27930), (1064, 27195), (1110, 26068), (1140, 25382), (1176, 24605), (1295, 22344), (1330, 21756), (1372, 21090), (1406, 20580), (1470, 19684), (1480, 19551), (1554, 18620), (1596, 18130), (1715, 16872), (1813, 15960), (1862, 15540), (1960, 14763), (1995, 14504), (2058, 14060), (2072, 13965), (2109, 13720), (2220, 13034), (2280, 12691), (2590, 11172), (2660, 10878), (2744, 10545), (2793, 10360), (2812, 10290), (2940, 9842), (3108, 9310), (3192, 9065), (3430, 8436), (3515, 8232), (3626, 7980), (3724, 7770), (3885, 7448), (3990, 7252), (4116, 7030), (4218, 6860), (4440, 6517), (4655, 6216), (4921, 5880), (5145, 5624), (5180, 5586), (5320, 5439)]