71973880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{4421}}^1$

素因数の和:4480

約数の個数: 64

約数和(自身を含む): 181478880

約数和(自身を除く): 109505000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 148, 185, 220, 296, 370, 407, 440, 740, 814, 1480, 1628, 2035, 3256, 4070, 4421, 8140, 8842, 16280, 17684, 22105, 35368, 44210, 48631, 88420, 97262, 163577, 176840, 194524, 243155, 327154, 389048, 486310, 654308, 817885, 972620, 1308616, 1635770, 1799347, 1945240, 3271540, 3598694, 6543080, 7197388, 8996735, 14394776, 17993470, 35986940, 71973880]

約数ペア:

[(1, 71973880), (2, 35986940), (4, 17993470), (5, 14394776), (8, 8996735), (10, 7197388), (11, 6543080), (20, 3598694), (22, 3271540), (37, 1945240), (40, 1799347), (44, 1635770), (55, 1308616), (74, 972620), (88, 817885), (110, 654308), (148, 486310), (185, 389048), (220, 327154), (296, 243155), (370, 194524), (407, 176840), (440, 163577), (740, 97262), (814, 88420), (1480, 48631), (1628, 44210), (2035, 35368), (3256, 22105), (4070, 17684), (4421, 16280), (8140, 8842)]