56169880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{991}}^1$

素因数の和:1124

約数の個数: 64

約数和(自身を含む): 137491200

約数和(自身を除く): 81321320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 109, 130, 218, 260, 436, 520, 545, 872, 991, 1090, 1417, 1982, 2180, 2834, 3964, 4360, 4955, 5668, 7085, 7928, 9910, 11336, 12883, 14170, 19820, 25766, 28340, 39640, 51532, 56680, 64415, 103064, 108019, 128830, 216038, 257660, 432076, 515320, 540095, 864152, 1080190, 1404247, 2160380, 2808494, 4320760, 5616988, 7021235, 11233976, 14042470, 28084940, 56169880]

約数ペア:

[(1, 56169880), (2, 28084940), (4, 14042470), (5, 11233976), (8, 7021235), (10, 5616988), (13, 4320760), (20, 2808494), (26, 2160380), (40, 1404247), (52, 1080190), (65, 864152), (104, 540095), (109, 515320), (130, 432076), (218, 257660), (260, 216038), (436, 128830), (520, 108019), (545, 103064), (872, 64415), (991, 56680), (1090, 51532), (1417, 39640), (1982, 28340), (2180, 25766), (2834, 19820), (3964, 14170), (4360, 12883), (4955, 11336), (5668, 9910), (7085, 7928)]