215565940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:253

約数の個数: 96

約数和(自身を含む): 487710720

約数和(自身を除く): 272144780

約数列:

[1, 2, 4, 5, 10, 20, 31, 59, 62, 71, 83, 118, 124, 142, 155, 166, 236, 284, 295, 310, 332, 355, 415, 590, 620, 710, 830, 1180, 1420, 1660, 1829, 2201, 2573, 3658, 4189, 4402, 4897, 5146, 5893, 7316, 8378, 8804, 9145, 9794, 10292, 11005, 11786, 12865, 16756, 18290, 19588, 20945, 22010, 23572, 24485, 25730, 29465, 36580, 41890, 44020, 48970, 51460, 58930, 83780, 97940, 117860, 129859, 151807, 182683, 259718, 303614, 347687, 365366, 519436, 607228, 649295, 695374, 730732, 759035, 913415, 1298590, 1390748, 1518070, 1738435, 1826830, 2597180, 3036140, 3476870, 3653660, 6953740, 10778297, 21556594, 43113188, 53891485, 107782970, 215565940]

約数ペア:

[(1, 215565940), (2, 107782970), (4, 53891485), (5, 43113188), (10, 21556594), (20, 10778297), (31, 6953740), (59, 3653660), (62, 3476870), (71, 3036140), (83, 2597180), (118, 1826830), (124, 1738435), (142, 1518070), (155, 1390748), (166, 1298590), (236, 913415), (284, 759035), (295, 730732), (310, 695374), (332, 649295), (355, 607228), (415, 519436), (590, 365366), (620, 347687), (710, 303614), (830, 259718), (1180, 182683), (1420, 151807), (1660, 129859), (1829, 117860), (2201, 97940), (2573, 83780), (3658, 58930), (4189, 51460), (4402, 48970), (4897, 44020), (5146, 41890), (5893, 36580), (7316, 29465), (8378, 25730), (8804, 24485), (9145, 23572), (9794, 22010), (10292, 20945), (11005, 19588), (11786, 18290), (12865, 16756)]