129122440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{1031}}^1$

素因数の和:1174

約数の個数: 64

約数和(自身を含む): 303160320

約数和(自身を除く): 174037880

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 101, 124, 155, 202, 248, 310, 404, 505, 620, 808, 1010, 1031, 1240, 2020, 2062, 3131, 4040, 4124, 5155, 6262, 8248, 10310, 12524, 15655, 20620, 25048, 31310, 31961, 41240, 62620, 63922, 104131, 125240, 127844, 159805, 208262, 255688, 319610, 416524, 520655, 639220, 833048, 1041310, 1278440, 2082620, 3228061, 4165240, 6456122, 12912244, 16140305, 25824488, 32280610, 64561220, 129122440]

約数ペア:

[(1, 129122440), (2, 64561220), (4, 32280610), (5, 25824488), (8, 16140305), (10, 12912244), (20, 6456122), (31, 4165240), (40, 3228061), (62, 2082620), (101, 1278440), (124, 1041310), (155, 833048), (202, 639220), (248, 520655), (310, 416524), (404, 319610), (505, 255688), (620, 208262), (808, 159805), (1010, 127844), (1031, 125240), (1240, 104131), (2020, 63922), (2062, 62620), (3131, 41240), (4040, 31961), (4124, 31310), (5155, 25048), (6262, 20620), (8248, 15655), (10310, 12524)]