74983640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{389}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 174096000

約数和(自身を除く): 99112360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 79, 122, 158, 244, 305, 316, 389, 395, 488, 610, 632, 778, 790, 1220, 1556, 1580, 1945, 2440, 3112, 3160, 3890, 4819, 7780, 9638, 15560, 19276, 23729, 24095, 30731, 38552, 47458, 48190, 61462, 94916, 96380, 118645, 122924, 153655, 189832, 192760, 237290, 245848, 307310, 474580, 614620, 949160, 1229240, 1874591, 3749182, 7498364, 9372955, 14996728, 18745910, 37491820, 74983640]

約数ペア:

[(1, 74983640), (2, 37491820), (4, 18745910), (5, 14996728), (8, 9372955), (10, 7498364), (20, 3749182), (40, 1874591), (61, 1229240), (79, 949160), (122, 614620), (158, 474580), (244, 307310), (305, 245848), (316, 237290), (389, 192760), (395, 189832), (488, 153655), (610, 122924), (632, 118645), (778, 96380), (790, 94916), (1220, 61462), (1556, 48190), (1580, 47458), (1945, 38552), (2440, 30731), (3112, 24095), (3160, 23729), (3890, 19276), (4819, 15560), (7780, 9638)]