19661520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:173

約数の個数: 160

約数和(自身を含む): 66424320

約数和(自身を除く): 46762800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 61, 68, 79, 80, 85, 102, 120, 122, 136, 158, 170, 183, 204, 237, 240, 244, 255, 272, 305, 316, 340, 366, 395, 408, 474, 488, 510, 610, 632, 680, 732, 790, 816, 915, 948, 976, 1020, 1037, 1185, 1220, 1264, 1343, 1360, 1464, 1580, 1830, 1896, 2040, 2074, 2370, 2440, 2686, 2928, 3111, 3160, 3660, 3792, 4029, 4080, 4148, 4740, 4819, 4880, 5185, 5372, 6222, 6320, 6715, 7320, 8058, 8296, 9480, 9638, 10370, 10744, 12444, 13430, 14457, 14640, 15555, 16116, 16592, 18960, 19276, 20145, 20740, 21488, 24095, 24888, 26860, 28914, 31110, 32232, 38552, 40290, 41480, 48190, 49776, 53720, 57828, 62220, 64464, 72285, 77104, 80580, 81923, 82960, 96380, 107440, 115656, 124440, 144570, 161160, 163846, 192760, 231312, 245769, 248880, 289140, 322320, 327692, 385520, 409615, 491538, 578280, 655384, 819230, 983076, 1156560, 1228845, 1310768, 1638460, 1966152, 2457690, 3276920, 3932304, 4915380, 6553840, 9830760, 19661520]

約数ペア:

[(1, 19661520), (2, 9830760), (3, 6553840), (4, 4915380), (5, 3932304), (6, 3276920), (8, 2457690), (10, 1966152), (12, 1638460), (15, 1310768), (16, 1228845), (17, 1156560), (20, 983076), (24, 819230), (30, 655384), (34, 578280), (40, 491538), (48, 409615), (51, 385520), (60, 327692), (61, 322320), (68, 289140), (79, 248880), (80, 245769), (85, 231312), (102, 192760), (120, 163846), (122, 161160), (136, 144570), (158, 124440), (170, 115656), (183, 107440), (204, 96380), (237, 82960), (240, 81923), (244, 80580), (255, 77104), (272, 72285), (305, 64464), (316, 62220), (340, 57828), (366, 53720), (395, 49776), (408, 48190), (474, 41480), (488, 40290), (510, 38552), (610, 32232), (632, 31110), (680, 28914), (732, 26860), (790, 24888), (816, 24095), (915, 21488), (948, 20740), (976, 20145), (1020, 19276), (1037, 18960), (1185, 16592), (1220, 16116), (1264, 15555), (1343, 14640), (1360, 14457), (1464, 13430), (1580, 12444), (1830, 10744), (1896, 10370), (2040, 9638), (2074, 9480), (2370, 8296), (2440, 8058), (2686, 7320), (2928, 6715), (3111, 6320), (3160, 6222), (3660, 5372), (3792, 5185), (4029, 4880), (4080, 4819), (4148, 4740)]