72141520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1123}}^1$

素因数の和:1220

約数の個数: 80

約数和(自身を含む): 185648832

約数和(自身を除く): 113507312

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 73, 80, 88, 110, 146, 176, 220, 292, 365, 440, 584, 730, 803, 880, 1123, 1168, 1460, 1606, 2246, 2920, 3212, 4015, 4492, 5615, 5840, 6424, 8030, 8984, 11230, 12353, 12848, 16060, 17968, 22460, 24706, 32120, 44920, 49412, 61765, 64240, 81979, 89840, 98824, 123530, 163958, 197648, 247060, 327916, 409895, 494120, 655832, 819790, 901769, 988240, 1311664, 1639580, 1803538, 3279160, 3607076, 4508845, 6558320, 7214152, 9017690, 14428304, 18035380, 36070760, 72141520]

約数ペア:

[(1, 72141520), (2, 36070760), (4, 18035380), (5, 14428304), (8, 9017690), (10, 7214152), (11, 6558320), (16, 4508845), (20, 3607076), (22, 3279160), (40, 1803538), (44, 1639580), (55, 1311664), (73, 988240), (80, 901769), (88, 819790), (110, 655832), (146, 494120), (176, 409895), (220, 327916), (292, 247060), (365, 197648), (440, 163958), (584, 123530), (730, 98824), (803, 89840), (880, 81979), (1123, 64240), (1168, 61765), (1460, 49412), (1606, 44920), (2246, 32120), (2920, 24706), (3212, 22460), (4015, 17968), (4492, 16060), (5615, 12848), (5840, 12353), (6424, 11230), (8030, 8984)]