66021320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1439}}^1$

素因数の和:1518

約数の個数: 64

約数和(自身を含む): 157593600

約数和(自身を除く): 91572280

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 62, 74, 124, 148, 155, 185, 248, 296, 310, 370, 620, 740, 1147, 1240, 1439, 1480, 2294, 2878, 4588, 5735, 5756, 7195, 9176, 11470, 11512, 14390, 22940, 28780, 44609, 45880, 53243, 57560, 89218, 106486, 178436, 212972, 223045, 266215, 356872, 425944, 446090, 532430, 892180, 1064860, 1650533, 1784360, 2129720, 3301066, 6602132, 8252665, 13204264, 16505330, 33010660, 66021320]

約数ペア:

[(1, 66021320), (2, 33010660), (4, 16505330), (5, 13204264), (8, 8252665), (10, 6602132), (20, 3301066), (31, 2129720), (37, 1784360), (40, 1650533), (62, 1064860), (74, 892180), (124, 532430), (148, 446090), (155, 425944), (185, 356872), (248, 266215), (296, 223045), (310, 212972), (370, 178436), (620, 106486), (740, 89218), (1147, 57560), (1240, 53243), (1439, 45880), (1480, 44609), (2294, 28780), (2878, 22940), (4588, 14390), (5735, 11512), (5756, 11470), (7195, 9176)]