64751940

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{991}}^1$

素因数の和:1031

約数の個数: 144

約数和(自身を含む): 221652480

約数和(自身を除く): 156900540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 90, 99, 108, 110, 121, 132, 135, 165, 180, 198, 220, 242, 270, 297, 330, 363, 396, 484, 495, 540, 594, 605, 660, 726, 990, 991, 1089, 1188, 1210, 1452, 1485, 1815, 1980, 1982, 2178, 2420, 2970, 2973, 3267, 3630, 3964, 4356, 4955, 5445, 5940, 5946, 6534, 7260, 8919, 9910, 10890, 10901, 11892, 13068, 14865, 16335, 17838, 19820, 21780, 21802, 26757, 29730, 32670, 32703, 35676, 43604, 44595, 53514, 54505, 59460, 65340, 65406, 89190, 98109, 107028, 109010, 119911, 130812, 133785, 163515, 178380, 196218, 218020, 239822, 267570, 294327, 327030, 359733, 392436, 479644, 490545, 535140, 588654, 599555, 654060, 719466, 981090, 1079199, 1177308, 1199110, 1438932, 1471635, 1798665, 1962180, 2158398, 2398220, 2943270, 3237597, 3597330, 4316796, 5395995, 5886540, 6475194, 7194660, 10791990, 12950388, 16187985, 21583980, 32375970, 64751940]

約数ペア:

[(1, 64751940), (2, 32375970), (3, 21583980), (4, 16187985), (5, 12950388), (6, 10791990), (9, 7194660), (10, 6475194), (11, 5886540), (12, 5395995), (15, 4316796), (18, 3597330), (20, 3237597), (22, 2943270), (27, 2398220), (30, 2158398), (33, 1962180), (36, 1798665), (44, 1471635), (45, 1438932), (54, 1199110), (55, 1177308), (60, 1079199), (66, 981090), (90, 719466), (99, 654060), (108, 599555), (110, 588654), (121, 535140), (132, 490545), (135, 479644), (165, 392436), (180, 359733), (198, 327030), (220, 294327), (242, 267570), (270, 239822), (297, 218020), (330, 196218), (363, 178380), (396, 163515), (484, 133785), (495, 130812), (540, 119911), (594, 109010), (605, 107028), (660, 98109), (726, 89190), (990, 65406), (991, 65340), (1089, 59460), (1188, 54505), (1210, 53514), (1452, 44595), (1485, 43604), (1815, 35676), (1980, 32703), (1982, 32670), (2178, 29730), (2420, 26757), (2970, 21802), (2973, 21780), (3267, 19820), (3630, 17838), (3964, 16335), (4356, 14865), (4955, 13068), (5445, 11892), (5940, 10901), (5946, 10890), (6534, 9910), (7260, 8919)]