15904720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{373}}^1$

素因数の和:440

約数の個数: 80

約数和(自身を含む): 40903632

約数和(自身を除く): 24998912

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 41, 52, 65, 80, 82, 104, 130, 164, 205, 208, 260, 328, 373, 410, 520, 533, 656, 746, 820, 1040, 1066, 1492, 1640, 1865, 2132, 2665, 2984, 3280, 3730, 4264, 4849, 5330, 5968, 7460, 8528, 9698, 10660, 14920, 15293, 19396, 21320, 24245, 29840, 30586, 38792, 42640, 48490, 61172, 76465, 77584, 96980, 122344, 152930, 193960, 198809, 244688, 305860, 387920, 397618, 611720, 795236, 994045, 1223440, 1590472, 1988090, 3180944, 3976180, 7952360, 15904720]

約数ペア:

[(1, 15904720), (2, 7952360), (4, 3976180), (5, 3180944), (8, 1988090), (10, 1590472), (13, 1223440), (16, 994045), (20, 795236), (26, 611720), (40, 397618), (41, 387920), (52, 305860), (65, 244688), (80, 198809), (82, 193960), (104, 152930), (130, 122344), (164, 96980), (205, 77584), (208, 76465), (260, 61172), (328, 48490), (373, 42640), (410, 38792), (520, 30586), (533, 29840), (656, 24245), (746, 21320), (820, 19396), (1040, 15293), (1066, 14920), (1492, 10660), (1640, 9698), (1865, 8528), (2132, 7460), (2665, 5968), (2984, 5330), (3280, 4849), (3730, 4264)]