28788500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:178

約数の個数: 96

約数和(自身を含む): 69957888

約数和(自身を除く): 41169388

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 43, 50, 52, 65, 86, 100, 103, 125, 130, 172, 206, 215, 250, 260, 325, 412, 430, 500, 515, 559, 650, 860, 1030, 1075, 1118, 1300, 1339, 1625, 2060, 2150, 2236, 2575, 2678, 2795, 3250, 4300, 4429, 5150, 5356, 5375, 5590, 6500, 6695, 8858, 10300, 10750, 11180, 12875, 13390, 13975, 17716, 21500, 22145, 25750, 26780, 27950, 33475, 44290, 51500, 55900, 57577, 66950, 69875, 88580, 110725, 115154, 133900, 139750, 167375, 221450, 230308, 279500, 287885, 334750, 442900, 553625, 575770, 669500, 1107250, 1151540, 1439425, 2214500, 2878850, 5757700, 7197125, 14394250, 28788500]

約数ペア:

[(1, 28788500), (2, 14394250), (4, 7197125), (5, 5757700), (10, 2878850), (13, 2214500), (20, 1439425), (25, 1151540), (26, 1107250), (43, 669500), (50, 575770), (52, 553625), (65, 442900), (86, 334750), (100, 287885), (103, 279500), (125, 230308), (130, 221450), (172, 167375), (206, 139750), (215, 133900), (250, 115154), (260, 110725), (325, 88580), (412, 69875), (430, 66950), (500, 57577), (515, 55900), (559, 51500), (650, 44290), (860, 33475), (1030, 27950), (1075, 26780), (1118, 25750), (1300, 22145), (1339, 21500), (1625, 17716), (2060, 13975), (2150, 13390), (2236, 12875), (2575, 11180), (2678, 10750), (2795, 10300), (3250, 8858), (4300, 6695), (4429, 6500), (5150, 5590), (5356, 5375)]