31465520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:322

約数の個数: 80

約数和(自身を含む): 78090240

約数和(自身を除く): 46624720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 127, 152, 163, 190, 254, 304, 326, 380, 508, 635, 652, 760, 815, 1016, 1270, 1304, 1520, 1630, 2032, 2413, 2540, 2608, 3097, 3260, 4826, 5080, 6194, 6520, 9652, 10160, 12065, 12388, 13040, 15485, 19304, 20701, 24130, 24776, 30970, 38608, 41402, 48260, 49552, 61940, 82804, 96520, 103505, 123880, 165608, 193040, 207010, 247760, 331216, 393319, 414020, 786638, 828040, 1573276, 1656080, 1966595, 3146552, 3933190, 6293104, 7866380, 15732760, 31465520]

約数ペア:

[(1, 31465520), (2, 15732760), (4, 7866380), (5, 6293104), (8, 3933190), (10, 3146552), (16, 1966595), (19, 1656080), (20, 1573276), (38, 828040), (40, 786638), (76, 414020), (80, 393319), (95, 331216), (127, 247760), (152, 207010), (163, 193040), (190, 165608), (254, 123880), (304, 103505), (326, 96520), (380, 82804), (508, 61940), (635, 49552), (652, 48260), (760, 41402), (815, 38608), (1016, 30970), (1270, 24776), (1304, 24130), (1520, 20701), (1630, 19304), (2032, 15485), (2413, 13040), (2540, 12388), (2608, 12065), (3097, 10160), (3260, 9652), (4826, 6520), (5080, 6194)]