189940720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:231

約数の個数: 160

約数和(自身を含む): 499968000

約数和(自身を除く): 310027280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 31, 38, 40, 58, 62, 76, 80, 95, 116, 124, 139, 145, 152, 155, 190, 232, 248, 278, 290, 304, 310, 380, 464, 496, 551, 556, 580, 589, 620, 695, 760, 899, 1102, 1112, 1160, 1178, 1240, 1390, 1520, 1798, 2204, 2224, 2320, 2356, 2480, 2641, 2755, 2780, 2945, 3596, 4031, 4309, 4408, 4495, 4712, 5282, 5510, 5560, 5890, 7192, 8062, 8618, 8816, 8990, 9424, 10564, 11020, 11120, 11780, 13205, 14384, 16124, 17081, 17236, 17980, 20155, 21128, 21545, 22040, 23560, 26410, 32248, 34162, 34472, 35960, 40310, 42256, 43090, 44080, 47120, 52820, 64496, 68324, 68944, 71920, 76589, 80620, 81871, 85405, 86180, 105640, 124961, 136648, 153178, 161240, 163742, 170810, 172360, 211280, 249922, 273296, 306356, 322480, 327484, 341620, 344720, 382945, 409355, 499844, 612712, 624805, 654968, 683240, 765890, 818710, 999688, 1225424, 1249610, 1309936, 1366480, 1531780, 1637420, 1999376, 2374259, 2499220, 3063560, 3274840, 4748518, 4998440, 6127120, 6549680, 9497036, 9996880, 11871295, 18994072, 23742590, 37988144, 47485180, 94970360, 189940720]

約数ペア:

[(1, 189940720), (2, 94970360), (4, 47485180), (5, 37988144), (8, 23742590), (10, 18994072), (16, 11871295), (19, 9996880), (20, 9497036), (29, 6549680), (31, 6127120), (38, 4998440), (40, 4748518), (58, 3274840), (62, 3063560), (76, 2499220), (80, 2374259), (95, 1999376), (116, 1637420), (124, 1531780), (139, 1366480), (145, 1309936), (152, 1249610), (155, 1225424), (190, 999688), (232, 818710), (248, 765890), (278, 683240), (290, 654968), (304, 624805), (310, 612712), (380, 499844), (464, 409355), (496, 382945), (551, 344720), (556, 341620), (580, 327484), (589, 322480), (620, 306356), (695, 273296), (760, 249922), (899, 211280), (1102, 172360), (1112, 170810), (1160, 163742), (1178, 161240), (1240, 153178), (1390, 136648), (1520, 124961), (1798, 105640), (2204, 86180), (2224, 85405), (2320, 81871), (2356, 80620), (2480, 76589), (2641, 71920), (2755, 68944), (2780, 68324), (2945, 64496), (3596, 52820), (4031, 47120), (4309, 44080), (4408, 43090), (4495, 42256), (4712, 40310), (5282, 35960), (5510, 34472), (5560, 34162), (5890, 32248), (7192, 26410), (8062, 23560), (8618, 22040), (8816, 21545), (8990, 21128), (9424, 20155), (10564, 17980), (11020, 17236), (11120, 17081), (11780, 16124), (13205, 14384)]