256471800

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:414

約数の個数: 192

約数和(自身を含む): 866194560

約数和(自身を除く): 609722760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 25, 26, 30, 39, 40, 50, 52, 60, 65, 75, 78, 100, 104, 120, 130, 131, 150, 156, 195, 200, 251, 260, 262, 300, 312, 325, 390, 393, 502, 520, 524, 600, 650, 655, 753, 780, 786, 975, 1004, 1048, 1255, 1300, 1310, 1506, 1560, 1572, 1703, 1950, 1965, 2008, 2510, 2600, 2620, 3012, 3144, 3263, 3275, 3406, 3765, 3900, 3930, 5020, 5109, 5240, 6024, 6275, 6526, 6550, 6812, 7530, 7800, 7860, 8515, 9789, 9825, 10040, 10218, 12550, 13052, 13100, 13624, 15060, 15720, 16315, 17030, 18825, 19578, 19650, 20436, 25100, 25545, 26104, 26200, 30120, 32630, 32881, 34060, 37650, 39156, 39300, 40872, 42575, 48945, 50200, 51090, 65260, 65762, 68120, 75300, 78312, 78600, 81575, 85150, 97890, 98643, 102180, 127725, 130520, 131524, 150600, 163150, 164405, 170300, 195780, 197286, 204360, 244725, 255450, 263048, 326300, 328810, 340600, 391560, 394572, 427453, 489450, 493215, 510900, 652600, 657620, 789144, 822025, 854906, 978900, 986430, 1021800, 1282359, 1315240, 1644050, 1709812, 1957800, 1972860, 2137265, 2466075, 2564718, 3288100, 3419624, 3945720, 4274530, 4932150, 5129436, 6411795, 6576200, 8549060, 9864300, 10258872, 10686325, 12823590, 17098120, 19728600, 21372650, 25647180, 32058975, 42745300, 51294360, 64117950, 85490600, 128235900, 256471800]

約数ペア:

[(1, 256471800), (2, 128235900), (3, 85490600), (4, 64117950), (5, 51294360), (6, 42745300), (8, 32058975), (10, 25647180), (12, 21372650), (13, 19728600), (15, 17098120), (20, 12823590), (24, 10686325), (25, 10258872), (26, 9864300), (30, 8549060), (39, 6576200), (40, 6411795), (50, 5129436), (52, 4932150), (60, 4274530), (65, 3945720), (75, 3419624), (78, 3288100), (100, 2564718), (104, 2466075), (120, 2137265), (130, 1972860), (131, 1957800), (150, 1709812), (156, 1644050), (195, 1315240), (200, 1282359), (251, 1021800), (260, 986430), (262, 978900), (300, 854906), (312, 822025), (325, 789144), (390, 657620), (393, 652600), (502, 510900), (520, 493215), (524, 489450), (600, 427453), (650, 394572), (655, 391560), (753, 340600), (780, 328810), (786, 326300), (975, 263048), (1004, 255450), (1048, 244725), (1255, 204360), (1300, 197286), (1310, 195780), (1506, 170300), (1560, 164405), (1572, 163150), (1703, 150600), (1950, 131524), (1965, 130520), (2008, 127725), (2510, 102180), (2600, 98643), (2620, 97890), (3012, 85150), (3144, 81575), (3263, 78600), (3275, 78312), (3406, 75300), (3765, 68120), (3900, 65762), (3930, 65260), (5020, 51090), (5109, 50200), (5240, 48945), (6024, 42575), (6275, 40872), (6526, 39300), (6550, 39156), (6812, 37650), (7530, 34060), (7800, 32881), (7860, 32630), (8515, 30120), (9789, 26200), (9825, 26104), (10040, 25545), (10218, 25100), (12550, 20436), (13052, 19650), (13100, 19578), (13624, 18825), (15060, 17030), (15720, 16315)]