2720970

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{617}}^1$

素因数の和:644

約数の個数: 72

約数和(自身を含む): 8242884

約数和(自身を除く): 5521914

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 617, 630, 735, 882, 1234, 1470, 1851, 2205, 3085, 3702, 4319, 4410, 5553, 6170, 8638, 9255, 11106, 12957, 18510, 21595, 25914, 27765, 30233, 38871, 43190, 55530, 60466, 64785, 77742, 90699, 129570, 151165, 181398, 194355, 272097, 302330, 388710, 453495, 544194, 906990, 1360485, 2720970]

約数ペア:

[(1, 2720970), (2, 1360485), (3, 906990), (5, 544194), (6, 453495), (7, 388710), (9, 302330), (10, 272097), (14, 194355), (15, 181398), (18, 151165), (21, 129570), (30, 90699), (35, 77742), (42, 64785), (45, 60466), (49, 55530), (63, 43190), (70, 38871), (90, 30233), (98, 27765), (105, 25914), (126, 21595), (147, 18510), (210, 12957), (245, 11106), (294, 9255), (315, 8638), (441, 6170), (490, 5553), (617, 4410), (630, 4319), (735, 3702), (882, 3085), (1234, 2205), (1470, 1851)]