7947940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1$

素因数の和:437

約数の個数: 96

約数和(自身を含む): 22466304

約数和(自身を除く): 14518364

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 130, 140, 143, 154, 182, 220, 260, 286, 308, 364, 385, 397, 455, 572, 715, 770, 794, 910, 1001, 1430, 1540, 1588, 1820, 1985, 2002, 2779, 2860, 3970, 4004, 4367, 5005, 5161, 5558, 7940, 8734, 10010, 10322, 11116, 13895, 17468, 20020, 20644, 21835, 25805, 27790, 30569, 36127, 43670, 51610, 55580, 56771, 61138, 72254, 87340, 103220, 113542, 122276, 144508, 152845, 180635, 227084, 283855, 305690, 361270, 397397, 567710, 611380, 722540, 794794, 1135420, 1589588, 1986985, 3973970, 7947940]

約数ペア:

[(1, 7947940), (2, 3973970), (4, 1986985), (5, 1589588), (7, 1135420), (10, 794794), (11, 722540), (13, 611380), (14, 567710), (20, 397397), (22, 361270), (26, 305690), (28, 283855), (35, 227084), (44, 180635), (52, 152845), (55, 144508), (65, 122276), (70, 113542), (77, 103220), (91, 87340), (110, 72254), (130, 61138), (140, 56771), (143, 55580), (154, 51610), (182, 43670), (220, 36127), (260, 30569), (286, 27790), (308, 25805), (364, 21835), (385, 20644), (397, 20020), (455, 17468), (572, 13895), (715, 11116), (770, 10322), (794, 10010), (910, 8734), (1001, 7940), (1430, 5558), (1540, 5161), (1588, 5005), (1820, 4367), (1985, 4004), (2002, 3970), (2779, 2860)]