258475520

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3257}}^1$

素因数の和:3311

約数の個数: 80

約数和(自身を含む): 639923328

約数和(自身を除く): 381447808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1984, 2480, 2560, 3257, 3968, 4960, 6514, 7936, 9920, 13028, 15872, 16285, 19840, 26056, 32570, 39680, 52112, 65140, 79360, 100967, 104224, 130280, 201934, 208448, 260560, 403868, 416896, 504835, 521120, 807736, 833792, 1009670, 1042240, 1615472, 1667584, 2019340, 2084480, 3230944, 4038680, 4168960, 6461888, 8077360, 8337920, 12923776, 16154720, 25847552, 32309440, 51695104, 64618880, 129237760, 258475520]

約数ペア:

[(1, 258475520), (2, 129237760), (4, 64618880), (5, 51695104), (8, 32309440), (10, 25847552), (16, 16154720), (20, 12923776), (31, 8337920), (32, 8077360), (40, 6461888), (62, 4168960), (64, 4038680), (80, 3230944), (124, 2084480), (128, 2019340), (155, 1667584), (160, 1615472), (248, 1042240), (256, 1009670), (310, 833792), (320, 807736), (496, 521120), (512, 504835), (620, 416896), (640, 403868), (992, 260560), (1240, 208448), (1280, 201934), (1984, 130280), (2480, 104224), (2560, 100967), (3257, 79360), (3968, 65140), (4960, 52112), (6514, 39680), (7936, 32570), (9920, 26056), (13028, 19840), (15872, 16285)]