79101620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{991}}^1$

素因数の和:1320

約数の個数: 48

約数和(自身を含む): 179655168

約数和(自身を除く): 100553548

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 307, 614, 991, 1228, 1535, 1982, 3070, 3964, 3991, 4955, 6140, 7982, 9910, 12883, 15964, 19820, 19955, 25766, 39910, 51532, 64415, 79820, 128830, 257660, 304237, 608474, 1216948, 1521185, 3042370, 3955081, 6084740, 7910162, 15820324, 19775405, 39550810, 79101620]

約数ペア:

[(1, 79101620), (2, 39550810), (4, 19775405), (5, 15820324), (10, 7910162), (13, 6084740), (20, 3955081), (26, 3042370), (52, 1521185), (65, 1216948), (130, 608474), (260, 304237), (307, 257660), (614, 128830), (991, 79820), (1228, 64415), (1535, 51532), (1982, 39910), (3070, 25766), (3964, 19955), (3991, 19820), (4955, 15964), (6140, 12883), (7982, 9910)]