40008780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{281}}^1$

素因数の和:416

約数の個数: 144

約数和(自身を含む): 140422464

約数和(自身を除く): 100413684

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 113, 126, 140, 180, 210, 226, 252, 281, 315, 339, 420, 452, 562, 565, 630, 678, 791, 843, 1017, 1124, 1130, 1260, 1356, 1405, 1582, 1686, 1695, 1967, 2034, 2260, 2373, 2529, 2810, 3164, 3372, 3390, 3934, 3955, 4068, 4215, 4746, 5058, 5085, 5620, 5901, 6780, 7119, 7868, 7910, 8430, 9492, 9835, 10116, 10170, 11802, 11865, 12645, 14238, 15820, 16860, 17703, 19670, 20340, 23604, 23730, 25290, 28476, 29505, 31753, 35406, 35595, 39340, 47460, 50580, 59010, 63506, 70812, 71190, 88515, 95259, 118020, 127012, 142380, 158765, 177030, 190518, 222271, 285777, 317530, 354060, 381036, 444542, 476295, 571554, 635060, 666813, 889084, 952590, 1111355, 1143108, 1333626, 1428885, 1905180, 2000439, 2222710, 2667252, 2857770, 3334065, 4000878, 4445420, 5715540, 6668130, 8001756, 10002195, 13336260, 20004390, 40008780]

約数ペア:

[(1, 40008780), (2, 20004390), (3, 13336260), (4, 10002195), (5, 8001756), (6, 6668130), (7, 5715540), (9, 4445420), (10, 4000878), (12, 3334065), (14, 2857770), (15, 2667252), (18, 2222710), (20, 2000439), (21, 1905180), (28, 1428885), (30, 1333626), (35, 1143108), (36, 1111355), (42, 952590), (45, 889084), (60, 666813), (63, 635060), (70, 571554), (84, 476295), (90, 444542), (105, 381036), (113, 354060), (126, 317530), (140, 285777), (180, 222271), (210, 190518), (226, 177030), (252, 158765), (281, 142380), (315, 127012), (339, 118020), (420, 95259), (452, 88515), (562, 71190), (565, 70812), (630, 63506), (678, 59010), (791, 50580), (843, 47460), (1017, 39340), (1124, 35595), (1130, 35406), (1260, 31753), (1356, 29505), (1405, 28476), (1582, 25290), (1686, 23730), (1695, 23604), (1967, 20340), (2034, 19670), (2260, 17703), (2373, 16860), (2529, 15820), (2810, 14238), (3164, 12645), (3372, 11865), (3390, 11802), (3934, 10170), (3955, 10116), (4068, 9835), (4215, 9492), (4746, 8430), (5058, 7910), (5085, 7868), (5620, 7119), (5901, 6780)]