15901480

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:112

約数の個数: 128

約数和(自身を含む): 44640000

約数和(自身を除く): 28738520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 61, 70, 76, 95, 98, 122, 133, 140, 152, 190, 196, 244, 245, 266, 280, 305, 343, 380, 392, 427, 488, 490, 532, 610, 665, 686, 760, 854, 931, 980, 1064, 1159, 1220, 1330, 1372, 1708, 1715, 1862, 1960, 2135, 2318, 2440, 2660, 2744, 2989, 3416, 3430, 3724, 4270, 4636, 4655, 5320, 5795, 5978, 6517, 6860, 7448, 8113, 8540, 9272, 9310, 11590, 11956, 13034, 13720, 14945, 16226, 17080, 18620, 20923, 23180, 23912, 26068, 29890, 32452, 32585, 37240, 40565, 41846, 46360, 52136, 56791, 59780, 64904, 65170, 81130, 83692, 104615, 113582, 119560, 130340, 162260, 167384, 209230, 227164, 260680, 283955, 324520, 397537, 418460, 454328, 567910, 795074, 836920, 1135820, 1590148, 1987685, 2271640, 3180296, 3975370, 7950740, 15901480]

約数ペア:

[(1, 15901480), (2, 7950740), (4, 3975370), (5, 3180296), (7, 2271640), (8, 1987685), (10, 1590148), (14, 1135820), (19, 836920), (20, 795074), (28, 567910), (35, 454328), (38, 418460), (40, 397537), (49, 324520), (56, 283955), (61, 260680), (70, 227164), (76, 209230), (95, 167384), (98, 162260), (122, 130340), (133, 119560), (140, 113582), (152, 104615), (190, 83692), (196, 81130), (244, 65170), (245, 64904), (266, 59780), (280, 56791), (305, 52136), (343, 46360), (380, 41846), (392, 40565), (427, 37240), (488, 32585), (490, 32452), (532, 29890), (610, 26068), (665, 23912), (686, 23180), (760, 20923), (854, 18620), (931, 17080), (980, 16226), (1064, 14945), (1159, 13720), (1220, 13034), (1330, 11956), (1372, 11590), (1708, 9310), (1715, 9272), (1862, 8540), (1960, 8113), (2135, 7448), (2318, 6860), (2440, 6517), (2660, 5978), (2744, 5795), (2989, 5320), (3416, 4655), (3430, 4636), (3724, 4270)]