42807280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1$

素因数の和:506

約数の個数: 80

約数和(自身を含む): 105493248

約数和(自身を除く): 62685968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 41, 62, 80, 82, 124, 155, 164, 205, 248, 310, 328, 410, 421, 496, 620, 656, 820, 842, 1240, 1271, 1640, 1684, 2105, 2480, 2542, 3280, 3368, 4210, 5084, 6355, 6736, 8420, 10168, 12710, 13051, 16840, 17261, 20336, 25420, 26102, 33680, 34522, 50840, 52204, 65255, 69044, 86305, 101680, 104408, 130510, 138088, 172610, 208816, 261020, 276176, 345220, 522040, 535091, 690440, 1044080, 1070182, 1380880, 2140364, 2675455, 4280728, 5350910, 8561456, 10701820, 21403640, 42807280]

約数ペア:

[(1, 42807280), (2, 21403640), (4, 10701820), (5, 8561456), (8, 5350910), (10, 4280728), (16, 2675455), (20, 2140364), (31, 1380880), (40, 1070182), (41, 1044080), (62, 690440), (80, 535091), (82, 522040), (124, 345220), (155, 276176), (164, 261020), (205, 208816), (248, 172610), (310, 138088), (328, 130510), (410, 104408), (421, 101680), (496, 86305), (620, 69044), (656, 65255), (820, 52204), (842, 50840), (1240, 34522), (1271, 33680), (1640, 26102), (1684, 25420), (2105, 20336), (2480, 17261), (2542, 16840), (3280, 13051), (3368, 12710), (4210, 10168), (5084, 8420), (6355, 6736)]