260747500

素因数分解:

$2^2\times 5^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:221

約数の個数: 120

約数和(自身を含む): 628223904

約数和(自身を除く): 367476404

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 71, 100, 113, 125, 130, 142, 226, 250, 260, 284, 325, 355, 452, 500, 565, 625, 650, 710, 923, 1130, 1250, 1300, 1420, 1469, 1625, 1775, 1846, 2260, 2500, 2825, 2938, 3250, 3550, 3692, 4615, 5650, 5876, 6500, 7100, 7345, 8023, 8125, 8875, 9230, 11300, 14125, 14690, 16046, 16250, 17750, 18460, 23075, 28250, 29380, 32092, 32500, 35500, 36725, 40115, 44375, 46150, 56500, 70625, 73450, 80230, 88750, 92300, 104299, 115375, 141250, 146900, 160460, 177500, 183625, 200575, 208598, 230750, 282500, 367250, 401150, 417196, 461500, 521495, 576875, 734500, 802300, 918125, 1002875, 1042990, 1153750, 1836250, 2005750, 2085980, 2307500, 2607475, 3672500, 4011500, 5014375, 5214950, 10028750, 10429900, 13037375, 20057500, 26074750, 52149500, 65186875, 130373750, 260747500]

約数ペア:

[(1, 260747500), (2, 130373750), (4, 65186875), (5, 52149500), (10, 26074750), (13, 20057500), (20, 13037375), (25, 10429900), (26, 10028750), (50, 5214950), (52, 5014375), (65, 4011500), (71, 3672500), (100, 2607475), (113, 2307500), (125, 2085980), (130, 2005750), (142, 1836250), (226, 1153750), (250, 1042990), (260, 1002875), (284, 918125), (325, 802300), (355, 734500), (452, 576875), (500, 521495), (565, 461500), (625, 417196), (650, 401150), (710, 367250), (923, 282500), (1130, 230750), (1250, 208598), (1300, 200575), (1420, 183625), (1469, 177500), (1625, 160460), (1775, 146900), (1846, 141250), (2260, 115375), (2500, 104299), (2825, 92300), (2938, 88750), (3250, 80230), (3550, 73450), (3692, 70625), (4615, 56500), (5650, 46150), (5876, 44375), (6500, 40115), (7100, 36725), (7345, 35500), (8023, 32500), (8125, 32092), (8875, 29380), (9230, 28250), (11300, 23075), (14125, 18460), (14690, 17750), (16046, 16250)]