81316300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{881}}^1$

素因数の和:979

約数の個数: 72

約数和(自身を含む): 192925152

約数和(自身を除く): 111608852

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 71, 100, 130, 142, 260, 284, 325, 355, 650, 710, 881, 923, 1300, 1420, 1762, 1775, 1846, 3524, 3550, 3692, 4405, 4615, 7100, 8810, 9230, 11453, 17620, 18460, 22025, 22906, 23075, 44050, 45812, 46150, 57265, 62551, 88100, 92300, 114530, 125102, 229060, 250204, 286325, 312755, 572650, 625510, 813163, 1145300, 1251020, 1563775, 1626326, 3127550, 3252652, 4065815, 6255100, 8131630, 16263260, 20329075, 40658150, 81316300]

約数ペア:

[(1, 81316300), (2, 40658150), (4, 20329075), (5, 16263260), (10, 8131630), (13, 6255100), (20, 4065815), (25, 3252652), (26, 3127550), (50, 1626326), (52, 1563775), (65, 1251020), (71, 1145300), (100, 813163), (130, 625510), (142, 572650), (260, 312755), (284, 286325), (325, 250204), (355, 229060), (650, 125102), (710, 114530), (881, 92300), (923, 88100), (1300, 62551), (1420, 57265), (1762, 46150), (1775, 45812), (1846, 44050), (3524, 23075), (3550, 22906), (3692, 22025), (4405, 18460), (4615, 17620), (7100, 11453), (8810, 9230)]