81802500

素因数分解:

$2^2\times 3^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{839}}^1$

素因数の和:879

約数の個数: 120

約数和(自身を含む): 257167680

約数和(自身を除く): 175365180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 125, 130, 150, 156, 195, 250, 260, 300, 325, 375, 390, 500, 625, 650, 750, 780, 839, 975, 1250, 1300, 1500, 1625, 1678, 1875, 1950, 2500, 2517, 3250, 3356, 3750, 3900, 4195, 4875, 5034, 6500, 7500, 8125, 8390, 9750, 10068, 10907, 12585, 16250, 16780, 19500, 20975, 21814, 24375, 25170, 32500, 32721, 41950, 43628, 48750, 50340, 54535, 62925, 65442, 83900, 97500, 104875, 109070, 125850, 130884, 163605, 209750, 218140, 251700, 272675, 314625, 327210, 419500, 524375, 545350, 629250, 654420, 818025, 1048750, 1090700, 1258500, 1363375, 1573125, 1636050, 2097500, 2726750, 3146250, 3272100, 4090125, 5453500, 6292500, 6816875, 8180250, 13633750, 16360500, 20450625, 27267500, 40901250, 81802500]

約数ペア:

[(1, 81802500), (2, 40901250), (3, 27267500), (4, 20450625), (5, 16360500), (6, 13633750), (10, 8180250), (12, 6816875), (13, 6292500), (15, 5453500), (20, 4090125), (25, 3272100), (26, 3146250), (30, 2726750), (39, 2097500), (50, 1636050), (52, 1573125), (60, 1363375), (65, 1258500), (75, 1090700), (78, 1048750), (100, 818025), (125, 654420), (130, 629250), (150, 545350), (156, 524375), (195, 419500), (250, 327210), (260, 314625), (300, 272675), (325, 251700), (375, 218140), (390, 209750), (500, 163605), (625, 130884), (650, 125850), (750, 109070), (780, 104875), (839, 97500), (975, 83900), (1250, 65442), (1300, 62925), (1500, 54535), (1625, 50340), (1678, 48750), (1875, 43628), (1950, 41950), (2500, 32721), (2517, 32500), (3250, 25170), (3356, 24375), (3750, 21814), (3900, 20975), (4195, 19500), (4875, 16780), (5034, 16250), (6500, 12585), (7500, 10907), (8125, 10068), (8390, 9750)]