2665000

素因数分解:

$2^3\times 5^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1$

素因数の和:80

約数の個数: 80

約数和(自身を含む): 6888420

約数和(自身を除く): 4223420

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 41, 50, 52, 65, 82, 100, 104, 125, 130, 164, 200, 205, 250, 260, 325, 328, 410, 500, 520, 533, 625, 650, 820, 1000, 1025, 1066, 1250, 1300, 1625, 1640, 2050, 2132, 2500, 2600, 2665, 3250, 4100, 4264, 5000, 5125, 5330, 6500, 8125, 8200, 10250, 10660, 13000, 13325, 16250, 20500, 21320, 25625, 26650, 32500, 41000, 51250, 53300, 65000, 66625, 102500, 106600, 133250, 205000, 266500, 333125, 533000, 666250, 1332500, 2665000]

約数ペア:

[(1, 2665000), (2, 1332500), (4, 666250), (5, 533000), (8, 333125), (10, 266500), (13, 205000), (20, 133250), (25, 106600), (26, 102500), (40, 66625), (41, 65000), (50, 53300), (52, 51250), (65, 41000), (82, 32500), (100, 26650), (104, 25625), (125, 21320), (130, 20500), (164, 16250), (200, 13325), (205, 13000), (250, 10660), (260, 10250), (325, 8200), (328, 8125), (410, 6500), (500, 5330), (520, 5125), (533, 5000), (625, 4264), (650, 4100), (820, 3250), (1000, 2665), (1025, 2600), (1066, 2500), (1250, 2132), (1300, 2050), (1625, 1640)]