164173880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{1321}}^1$

素因数の和:1584

約数の個数: 64

約数和(自身を含む): 399772800

約数和(自身を除く): 235598920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 239, 260, 478, 520, 956, 1195, 1321, 1912, 2390, 2642, 3107, 4780, 5284, 6214, 6605, 9560, 10568, 12428, 13210, 15535, 17173, 24856, 26420, 31070, 34346, 52840, 62140, 68692, 85865, 124280, 137384, 171730, 315719, 343460, 631438, 686920, 1262876, 1578595, 2525752, 3157190, 4104347, 6314380, 8208694, 12628760, 16417388, 20521735, 32834776, 41043470, 82086940, 164173880]

約数ペア:

[(1, 164173880), (2, 82086940), (4, 41043470), (5, 32834776), (8, 20521735), (10, 16417388), (13, 12628760), (20, 8208694), (26, 6314380), (40, 4104347), (52, 3157190), (65, 2525752), (104, 1578595), (130, 1262876), (239, 686920), (260, 631438), (478, 343460), (520, 315719), (956, 171730), (1195, 137384), (1321, 124280), (1912, 85865), (2390, 68692), (2642, 62140), (3107, 52840), (4780, 34346), (5284, 31070), (6214, 26420), (6605, 24856), (9560, 17173), (10568, 15535), (12428, 13210)]