72890120

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{29873}}^1$

素因数の和:29945

約数の個数: 32

約数和(自身を含む): 166696920

約数和(自身を除く): 93806800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 29873, 59746, 119492, 149365, 238984, 298730, 597460, 1194920, 1822253, 3644506, 7289012, 9111265, 14578024, 18222530, 36445060, 72890120]

約数ペア:

[(1, 72890120), (2, 36445060), (4, 18222530), (5, 14578024), (8, 9111265), (10, 7289012), (20, 3644506), (40, 1822253), (61, 1194920), (122, 597460), (244, 298730), (305, 238984), (488, 149365), (610, 119492), (1220, 59746), (2440, 29873)]