71988280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19777}}^1$

素因数の和:19808

約数の個数: 64

約数和(自身を含む): 199362240

約数和(自身を除く): 127373960

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 19777, 39554, 79108, 98885, 138439, 158216, 197770, 257101, 276878, 395540, 514202, 553756, 692195, 791080, 1028404, 1107512, 1285505, 1384390, 1799707, 2056808, 2571010, 2768780, 3599414, 5142020, 5537560, 7198828, 8998535, 10284040, 14397656, 17997070, 35994140, 71988280]

約数ペア:

[(1, 71988280), (2, 35994140), (4, 17997070), (5, 14397656), (7, 10284040), (8, 8998535), (10, 7198828), (13, 5537560), (14, 5142020), (20, 3599414), (26, 2768780), (28, 2571010), (35, 2056808), (40, 1799707), (52, 1384390), (56, 1285505), (65, 1107512), (70, 1028404), (91, 791080), (104, 692195), (130, 553756), (140, 514202), (182, 395540), (260, 276878), (280, 257101), (364, 197770), (455, 158216), (520, 138439), (728, 98885), (910, 79108), (1820, 39554), (3640, 19777)]