920379390

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{61729}}^1$

素因数の和:61817

約数の個数: 64

約数和(自身を含む): 2560066560

約数和(自身を除く): 1639687170

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 71, 105, 142, 210, 213, 355, 426, 497, 710, 994, 1065, 1491, 2130, 2485, 2982, 4970, 7455, 14910, 61729, 123458, 185187, 308645, 370374, 432103, 617290, 864206, 925935, 1296309, 1851870, 2160515, 2592618, 4321030, 4382759, 6481545, 8765518, 12963090, 13148277, 21913795, 26296554, 30679313, 43827590, 61358626, 65741385, 92037939, 131482770, 153396565, 184075878, 306793130, 460189695, 920379390]

約数ペア:

[(1, 920379390), (2, 460189695), (3, 306793130), (5, 184075878), (6, 153396565), (7, 131482770), (10, 92037939), (14, 65741385), (15, 61358626), (21, 43827590), (30, 30679313), (35, 26296554), (42, 21913795), (70, 13148277), (71, 12963090), (105, 8765518), (142, 6481545), (210, 4382759), (213, 4321030), (355, 2592618), (426, 2160515), (497, 1851870), (710, 1296309), (994, 925935), (1065, 864206), (1491, 617290), (2130, 432103), (2485, 370374), (2982, 308645), (4970, 185187), (7455, 123458), (14910, 61729)]