865004520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{277}}^1\times {\mathrm{491}}^1$

素因数の和:835

約数の個数: 128

約数和(自身を含む): 2658925440

約数和(自身を除く): 1793920920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 53, 60, 106, 120, 159, 212, 265, 277, 318, 424, 491, 530, 554, 636, 795, 831, 982, 1060, 1108, 1272, 1385, 1473, 1590, 1662, 1964, 2120, 2216, 2455, 2770, 2946, 3180, 3324, 3928, 4155, 4910, 5540, 5892, 6360, 6648, 7365, 8310, 9820, 11080, 11784, 14681, 14730, 16620, 19640, 26023, 29362, 29460, 33240, 44043, 52046, 58724, 58920, 73405, 78069, 88086, 104092, 117448, 130115, 136007, 146810, 156138, 176172, 208184, 220215, 260230, 272014, 293620, 312276, 352344, 390345, 408021, 440430, 520460, 544028, 587240, 624552, 680035, 780690, 816042, 880860, 1040920, 1088056, 1360070, 1561380, 1632084, 1761720, 2040105, 2720140, 3122760, 3264168, 4080210, 5440280, 7208371, 8160420, 14416742, 16320840, 21625113, 28833484, 36041855, 43250226, 57666968, 72083710, 86500452, 108125565, 144167420, 173000904, 216251130, 288334840, 432502260, 865004520]

約数ペア:

[(1, 865004520), (2, 432502260), (3, 288334840), (4, 216251130), (5, 173000904), (6, 144167420), (8, 108125565), (10, 86500452), (12, 72083710), (15, 57666968), (20, 43250226), (24, 36041855), (30, 28833484), (40, 21625113), (53, 16320840), (60, 14416742), (106, 8160420), (120, 7208371), (159, 5440280), (212, 4080210), (265, 3264168), (277, 3122760), (318, 2720140), (424, 2040105), (491, 1761720), (530, 1632084), (554, 1561380), (636, 1360070), (795, 1088056), (831, 1040920), (982, 880860), (1060, 816042), (1108, 780690), (1272, 680035), (1385, 624552), (1473, 587240), (1590, 544028), (1662, 520460), (1964, 440430), (2120, 408021), (2216, 390345), (2455, 352344), (2770, 312276), (2946, 293620), (3180, 272014), (3324, 260230), (3928, 220215), (4155, 208184), (4910, 176172), (5540, 156138), (5892, 146810), (6360, 136007), (6648, 130115), (7365, 117448), (8310, 104092), (9820, 88086), (11080, 78069), (11784, 73405), (14681, 58920), (14730, 58724), (16620, 52046), (19640, 44043), (26023, 33240), (29362, 29460)]