311593750

素因数分解:

$2^1\times 5^6\times {\mathrm{13}}^2\times {\mathrm{59}}^1$

素因数の和:117

約数の個数: 84

約数和(自身を含む): 643351140

約数和(自身を除く): 331757390

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 59, 65, 118, 125, 130, 169, 250, 295, 325, 338, 590, 625, 650, 767, 845, 1250, 1475, 1534, 1625, 1690, 2950, 3125, 3250, 3835, 4225, 6250, 7375, 7670, 8125, 8450, 9971, 14750, 15625, 16250, 19175, 19942, 21125, 31250, 36875, 38350, 40625, 42250, 49855, 73750, 81250, 95875, 99710, 105625, 184375, 191750, 203125, 211250, 249275, 368750, 406250, 479375, 498550, 528125, 921875, 958750, 1056250, 1246375, 1843750, 2396875, 2492750, 2640625, 4793750, 5281250, 6231875, 11984375, 12463750, 23968750, 31159375, 62318750, 155796875, 311593750]

約数ペア:

[(1, 311593750), (2, 155796875), (5, 62318750), (10, 31159375), (13, 23968750), (25, 12463750), (26, 11984375), (50, 6231875), (59, 5281250), (65, 4793750), (118, 2640625), (125, 2492750), (130, 2396875), (169, 1843750), (250, 1246375), (295, 1056250), (325, 958750), (338, 921875), (590, 528125), (625, 498550), (650, 479375), (767, 406250), (845, 368750), (1250, 249275), (1475, 211250), (1534, 203125), (1625, 191750), (1690, 184375), (2950, 105625), (3125, 99710), (3250, 95875), (3835, 81250), (4225, 73750), (6250, 49855), (7375, 42250), (7670, 40625), (8125, 38350), (8450, 36875), (9971, 31250), (14750, 21125), (15625, 19942), (16250, 19175)]