161005000

素因数分解:

$2^3\times 5^4\times {\mathrm{13}}^1\times {\mathrm{2477}}^1$

素因数の和:2516

約数の個数: 80

約数和(自身を含む): 406416780

約数和(自身を除く): 245411780

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 500, 520, 625, 650, 1000, 1250, 1300, 1625, 2477, 2500, 2600, 3250, 4954, 5000, 6500, 8125, 9908, 12385, 13000, 16250, 19816, 24770, 32201, 32500, 49540, 61925, 64402, 65000, 99080, 123850, 128804, 161005, 247700, 257608, 309625, 322010, 495400, 619250, 644020, 805025, 1238500, 1288040, 1548125, 1610050, 2477000, 3096250, 3220100, 4025125, 6192500, 6440200, 8050250, 12385000, 16100500, 20125625, 32201000, 40251250, 80502500, 161005000]

約数ペア:

[(1, 161005000), (2, 80502500), (4, 40251250), (5, 32201000), (8, 20125625), (10, 16100500), (13, 12385000), (20, 8050250), (25, 6440200), (26, 6192500), (40, 4025125), (50, 3220100), (52, 3096250), (65, 2477000), (100, 1610050), (104, 1548125), (125, 1288040), (130, 1238500), (200, 805025), (250, 644020), (260, 619250), (325, 495400), (500, 322010), (520, 309625), (625, 257608), (650, 247700), (1000, 161005), (1250, 128804), (1300, 123850), (1625, 99080), (2477, 65000), (2500, 64402), (2600, 61925), (3250, 49540), (4954, 32500), (5000, 32201), (6500, 24770), (8125, 19816), (9908, 16250), (12385, 13000)]