28730000

素因数分解:

$2^4\times 5^4\times {\mathrm{13}}^2\times {\mathrm{17}}^1$

素因数の和:71

約数の個数: 150

約数和(自身を含む): 79751034

約数和(自身を除く): 51021034

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 25, 26, 34, 40, 50, 52, 65, 68, 80, 85, 100, 104, 125, 130, 136, 169, 170, 200, 208, 221, 250, 260, 272, 325, 338, 340, 400, 425, 442, 500, 520, 625, 650, 676, 680, 845, 850, 884, 1000, 1040, 1105, 1250, 1300, 1352, 1360, 1625, 1690, 1700, 1768, 2000, 2125, 2210, 2500, 2600, 2704, 2873, 3250, 3380, 3400, 3536, 4225, 4250, 4420, 5000, 5200, 5525, 5746, 6500, 6760, 6800, 8125, 8450, 8500, 8840, 10000, 10625, 11050, 11492, 13000, 13520, 14365, 16250, 16900, 17000, 17680, 21125, 21250, 22100, 22984, 26000, 27625, 28730, 32500, 33800, 34000, 42250, 42500, 44200, 45968, 55250, 57460, 65000, 67600, 71825, 84500, 85000, 88400, 105625, 110500, 114920, 130000, 138125, 143650, 169000, 170000, 211250, 221000, 229840, 276250, 287300, 338000, 359125, 422500, 442000, 552500, 574600, 718250, 845000, 1105000, 1149200, 1436500, 1690000, 1795625, 2210000, 2873000, 3591250, 5746000, 7182500, 14365000, 28730000]

約数ペア:

[(1, 28730000), (2, 14365000), (4, 7182500), (5, 5746000), (8, 3591250), (10, 2873000), (13, 2210000), (16, 1795625), (17, 1690000), (20, 1436500), (25, 1149200), (26, 1105000), (34, 845000), (40, 718250), (50, 574600), (52, 552500), (65, 442000), (68, 422500), (80, 359125), (85, 338000), (100, 287300), (104, 276250), (125, 229840), (130, 221000), (136, 211250), (169, 170000), (170, 169000), (200, 143650), (208, 138125), (221, 130000), (250, 114920), (260, 110500), (272, 105625), (325, 88400), (338, 85000), (340, 84500), (400, 71825), (425, 67600), (442, 65000), (500, 57460), (520, 55250), (625, 45968), (650, 44200), (676, 42500), (680, 42250), (845, 34000), (850, 33800), (884, 32500), (1000, 28730), (1040, 27625), (1105, 26000), (1250, 22984), (1300, 22100), (1352, 21250), (1360, 21125), (1625, 17680), (1690, 17000), (1700, 16900), (1768, 16250), (2000, 14365), (2125, 13520), (2210, 13000), (2500, 11492), (2600, 11050), (2704, 10625), (2873, 10000), (3250, 8840), (3380, 8500), (3400, 8450), (3536, 8125), (4225, 6800), (4250, 6760), (4420, 6500), (5000, 5746), (5200, 5525)]