80048020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:269

約数の個数: 96

約数和(自身を含む): 190639008

約数和(自身を除く): 110590988

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 53, 65, 74, 106, 130, 148, 157, 185, 212, 260, 265, 314, 370, 481, 530, 628, 689, 740, 785, 962, 1060, 1378, 1570, 1924, 1961, 2041, 2405, 2756, 3140, 3445, 3922, 4082, 4810, 5809, 6890, 7844, 8164, 8321, 9620, 9805, 10205, 11618, 13780, 16642, 19610, 20410, 23236, 25493, 29045, 33284, 39220, 40820, 41605, 50986, 58090, 75517, 83210, 101972, 108173, 116180, 127465, 151034, 166420, 216346, 254930, 302068, 307877, 377585, 432692, 509860, 540865, 615754, 755170, 1081730, 1231508, 1510340, 1539385, 2163460, 3078770, 4002401, 6157540, 8004802, 16009604, 20012005, 40024010, 80048020]

約数ペア:

[(1, 80048020), (2, 40024010), (4, 20012005), (5, 16009604), (10, 8004802), (13, 6157540), (20, 4002401), (26, 3078770), (37, 2163460), (52, 1539385), (53, 1510340), (65, 1231508), (74, 1081730), (106, 755170), (130, 615754), (148, 540865), (157, 509860), (185, 432692), (212, 377585), (260, 307877), (265, 302068), (314, 254930), (370, 216346), (481, 166420), (530, 151034), (628, 127465), (689, 116180), (740, 108173), (785, 101972), (962, 83210), (1060, 75517), (1378, 58090), (1570, 50986), (1924, 41605), (1961, 40820), (2041, 39220), (2405, 33284), (2756, 29045), (3140, 25493), (3445, 23236), (3922, 20410), (4082, 19610), (4810, 16642), (5809, 13780), (6890, 11618), (7844, 10205), (8164, 9805), (8321, 9620)]