18167500

素因数分解:

$2^2\times 5^4\times {\mathrm{13}}^2\times {\mathrm{43}}^1$

素因数の和:93

約数の個数: 90

約数和(自身を含む): 44020284

約数和(自身を除く): 25852784

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 43, 50, 52, 65, 86, 100, 125, 130, 169, 172, 215, 250, 260, 325, 338, 430, 500, 559, 625, 650, 676, 845, 860, 1075, 1118, 1250, 1300, 1625, 1690, 2150, 2236, 2500, 2795, 3250, 3380, 4225, 4300, 5375, 5590, 6500, 7267, 8125, 8450, 10750, 11180, 13975, 14534, 16250, 16900, 21125, 21500, 26875, 27950, 29068, 32500, 36335, 42250, 53750, 55900, 69875, 72670, 84500, 105625, 107500, 139750, 145340, 181675, 211250, 279500, 349375, 363350, 422500, 698750, 726700, 908375, 1397500, 1816750, 3633500, 4541875, 9083750, 18167500]

約数ペア:

[(1, 18167500), (2, 9083750), (4, 4541875), (5, 3633500), (10, 1816750), (13, 1397500), (20, 908375), (25, 726700), (26, 698750), (43, 422500), (50, 363350), (52, 349375), (65, 279500), (86, 211250), (100, 181675), (125, 145340), (130, 139750), (169, 107500), (172, 105625), (215, 84500), (250, 72670), (260, 69875), (325, 55900), (338, 53750), (430, 42250), (500, 36335), (559, 32500), (625, 29068), (650, 27950), (676, 26875), (845, 21500), (860, 21125), (1075, 16900), (1118, 16250), (1250, 14534), (1300, 13975), (1625, 11180), (1690, 10750), (2150, 8450), (2236, 8125), (2500, 7267), (2795, 6500), (3250, 5590), (3380, 5375), (4225, 4300)]