291225160

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:371

約数の個数: 128

約数和(自身を含む): 729907200

約数和(自身を除く): 438682040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 47, 62, 76, 94, 95, 124, 152, 155, 188, 190, 235, 248, 263, 310, 376, 380, 470, 526, 589, 620, 760, 893, 940, 1052, 1178, 1240, 1315, 1457, 1786, 1880, 2104, 2356, 2630, 2914, 2945, 3572, 4465, 4712, 4997, 5260, 5828, 5890, 7144, 7285, 8153, 8930, 9994, 10520, 11656, 11780, 12361, 14570, 16306, 17860, 19988, 23560, 24722, 24985, 27683, 29140, 32612, 35720, 39976, 40765, 49444, 49970, 55366, 58280, 61805, 65224, 81530, 98888, 99940, 110732, 123610, 138415, 154907, 163060, 199880, 221464, 234859, 247220, 276830, 309814, 326120, 383191, 469718, 494440, 553660, 619628, 766382, 774535, 939436, 1107320, 1174295, 1239256, 1532764, 1549070, 1878872, 1915955, 2348590, 3065528, 3098140, 3831910, 4697180, 6196280, 7280629, 7663820, 9394360, 14561258, 15327640, 29122516, 36403145, 58245032, 72806290, 145612580, 291225160]

約数ペア:

[(1, 291225160), (2, 145612580), (4, 72806290), (5, 58245032), (8, 36403145), (10, 29122516), (19, 15327640), (20, 14561258), (31, 9394360), (38, 7663820), (40, 7280629), (47, 6196280), (62, 4697180), (76, 3831910), (94, 3098140), (95, 3065528), (124, 2348590), (152, 1915955), (155, 1878872), (188, 1549070), (190, 1532764), (235, 1239256), (248, 1174295), (263, 1107320), (310, 939436), (376, 774535), (380, 766382), (470, 619628), (526, 553660), (589, 494440), (620, 469718), (760, 383191), (893, 326120), (940, 309814), (1052, 276830), (1178, 247220), (1240, 234859), (1315, 221464), (1457, 199880), (1786, 163060), (1880, 154907), (2104, 138415), (2356, 123610), (2630, 110732), (2914, 99940), (2945, 98888), (3572, 81530), (4465, 65224), (4712, 61805), (4997, 58280), (5260, 55366), (5828, 49970), (5890, 49444), (7144, 40765), (7285, 39976), (8153, 35720), (8930, 32612), (9994, 29140), (10520, 27683), (11656, 24985), (11780, 24722), (12361, 23560), (14570, 19988), (16306, 17860)]