15402920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1559}}^1$

素因数の和:1602

約数の個数: 64

約数和(自身を含む): 39312000

約数和(自身を除く): 23909080

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1559, 1976, 2470, 3118, 4940, 6236, 7795, 9880, 12472, 15590, 20267, 29621, 31180, 40534, 59242, 62360, 81068, 101335, 118484, 148105, 162136, 202670, 236968, 296210, 385073, 405340, 592420, 770146, 810680, 1184840, 1540292, 1925365, 3080584, 3850730, 7701460, 15402920]

約数ペア:

[(1, 15402920), (2, 7701460), (4, 3850730), (5, 3080584), (8, 1925365), (10, 1540292), (13, 1184840), (19, 810680), (20, 770146), (26, 592420), (38, 405340), (40, 385073), (52, 296210), (65, 236968), (76, 202670), (95, 162136), (104, 148105), (130, 118484), (152, 101335), (190, 81068), (247, 62360), (260, 59242), (380, 40534), (494, 31180), (520, 29621), (760, 20267), (988, 15590), (1235, 12472), (1559, 9880), (1976, 7795), (2470, 6236), (3118, 4940)]