72515440

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:326

約数の個数: 80

約数和(自身を含む): 174238848

約数和(自身を除く): 101723408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 83, 134, 163, 166, 268, 326, 332, 335, 415, 536, 652, 664, 670, 815, 830, 1072, 1304, 1328, 1340, 1630, 1660, 2608, 2680, 3260, 3320, 5360, 5561, 6520, 6640, 10921, 11122, 13040, 13529, 21842, 22244, 27058, 27805, 43684, 44488, 54116, 54605, 55610, 67645, 87368, 88976, 108232, 109210, 111220, 135290, 174736, 216464, 218420, 222440, 270580, 436840, 444880, 541160, 873680, 906443, 1082320, 1812886, 3625772, 4532215, 7251544, 9064430, 14503088, 18128860, 36257720, 72515440]

約数ペア:

[(1, 72515440), (2, 36257720), (4, 18128860), (5, 14503088), (8, 9064430), (10, 7251544), (16, 4532215), (20, 3625772), (40, 1812886), (67, 1082320), (80, 906443), (83, 873680), (134, 541160), (163, 444880), (166, 436840), (268, 270580), (326, 222440), (332, 218420), (335, 216464), (415, 174736), (536, 135290), (652, 111220), (664, 109210), (670, 108232), (815, 88976), (830, 87368), (1072, 67645), (1304, 55610), (1328, 54605), (1340, 54116), (1630, 44488), (1660, 43684), (2608, 27805), (2680, 27058), (3260, 22244), (3320, 21842), (5360, 13529), (5561, 13040), (6520, 11122), (6640, 10921)]