161781300

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{19973}}^1$

素因数の和:19999

約数の個数: 90

約数和(自身を含む): 524457318

約数和(自身を除く): 362676018

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 135, 150, 162, 180, 225, 270, 300, 324, 405, 450, 540, 675, 810, 900, 1350, 1620, 2025, 2700, 4050, 8100, 19973, 39946, 59919, 79892, 99865, 119838, 179757, 199730, 239676, 299595, 359514, 399460, 499325, 539271, 599190, 719028, 898785, 998650, 1078542, 1198380, 1497975, 1617813, 1797570, 1997300, 2157084, 2696355, 2995950, 3235626, 3595140, 4493925, 5392710, 5991900, 6471252, 8089065, 8987850, 10785420, 13481775, 16178130, 17975700, 26963550, 32356260, 40445325, 53927100, 80890650, 161781300]

約数ペア:

[(1, 161781300), (2, 80890650), (3, 53927100), (4, 40445325), (5, 32356260), (6, 26963550), (9, 17975700), (10, 16178130), (12, 13481775), (15, 10785420), (18, 8987850), (20, 8089065), (25, 6471252), (27, 5991900), (30, 5392710), (36, 4493925), (45, 3595140), (50, 3235626), (54, 2995950), (60, 2696355), (75, 2157084), (81, 1997300), (90, 1797570), (100, 1617813), (108, 1497975), (135, 1198380), (150, 1078542), (162, 998650), (180, 898785), (225, 719028), (270, 599190), (300, 539271), (324, 499325), (405, 399460), (450, 359514), (540, 299595), (675, 239676), (810, 199730), (900, 179757), (1350, 119838), (1620, 99865), (2025, 79892), (2700, 59919), (4050, 39946), (8100, 19973)]