64153880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1$

素因数の和:457

約数の個数: 128

約数和(自身を含む): 179712000

約数和(自身を除く): 115558120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 31, 35, 38, 40, 56, 62, 70, 76, 95, 124, 133, 140, 152, 155, 190, 217, 248, 266, 280, 310, 380, 389, 434, 532, 589, 620, 665, 760, 778, 868, 1064, 1085, 1178, 1240, 1330, 1556, 1736, 1945, 2170, 2356, 2660, 2723, 2945, 3112, 3890, 4123, 4340, 4712, 5320, 5446, 5890, 7391, 7780, 8246, 8680, 10892, 11780, 12059, 13615, 14782, 15560, 16492, 20615, 21784, 23560, 24118, 27230, 29564, 32984, 36955, 41230, 48236, 51737, 54460, 59128, 60295, 73910, 82460, 84413, 96472, 103474, 108920, 120590, 147820, 164920, 168826, 206948, 229121, 241180, 258685, 295640, 337652, 413896, 422065, 458242, 482360, 517370, 675304, 844130, 916484, 1034740, 1145605, 1603847, 1688260, 1832968, 2069480, 2291210, 3207694, 3376520, 4582420, 6415388, 8019235, 9164840, 12830776, 16038470, 32076940, 64153880]

約数ペア:

[(1, 64153880), (2, 32076940), (4, 16038470), (5, 12830776), (7, 9164840), (8, 8019235), (10, 6415388), (14, 4582420), (19, 3376520), (20, 3207694), (28, 2291210), (31, 2069480), (35, 1832968), (38, 1688260), (40, 1603847), (56, 1145605), (62, 1034740), (70, 916484), (76, 844130), (95, 675304), (124, 517370), (133, 482360), (140, 458242), (152, 422065), (155, 413896), (190, 337652), (217, 295640), (248, 258685), (266, 241180), (280, 229121), (310, 206948), (380, 168826), (389, 164920), (434, 147820), (532, 120590), (589, 108920), (620, 103474), (665, 96472), (760, 84413), (778, 82460), (868, 73910), (1064, 60295), (1085, 59128), (1178, 54460), (1240, 51737), (1330, 48236), (1556, 41230), (1736, 36955), (1945, 32984), (2170, 29564), (2356, 27230), (2660, 24118), (2723, 23560), (2945, 21784), (3112, 20615), (3890, 16492), (4123, 15560), (4340, 14782), (4712, 13615), (5320, 12059), (5446, 11780), (5890, 10892), (7391, 8680), (7780, 8246)]