13238240

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:220

約数の個数: 96

約数和(自身を含む): 34401024

約数和(自身を除く): 21162784

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 68, 80, 85, 124, 136, 155, 157, 160, 170, 248, 272, 310, 314, 340, 496, 527, 544, 620, 628, 680, 785, 992, 1054, 1240, 1256, 1360, 1570, 2108, 2480, 2512, 2635, 2669, 2720, 3140, 4216, 4867, 4960, 5024, 5270, 5338, 6280, 8432, 9734, 10540, 10676, 12560, 13345, 16864, 19468, 21080, 21352, 24335, 25120, 26690, 38936, 42160, 42704, 48670, 53380, 77872, 82739, 84320, 85408, 97340, 106760, 155744, 165478, 194680, 213520, 330956, 389360, 413695, 427040, 661912, 778720, 827390, 1323824, 1654780, 2647648, 3309560, 6619120, 13238240]

約数ペア:

[(1, 13238240), (2, 6619120), (4, 3309560), (5, 2647648), (8, 1654780), (10, 1323824), (16, 827390), (17, 778720), (20, 661912), (31, 427040), (32, 413695), (34, 389360), (40, 330956), (62, 213520), (68, 194680), (80, 165478), (85, 155744), (124, 106760), (136, 97340), (155, 85408), (157, 84320), (160, 82739), (170, 77872), (248, 53380), (272, 48670), (310, 42704), (314, 42160), (340, 38936), (496, 26690), (527, 25120), (544, 24335), (620, 21352), (628, 21080), (680, 19468), (785, 16864), (992, 13345), (1054, 12560), (1240, 10676), (1256, 10540), (1360, 9734), (1570, 8432), (2108, 6280), (2480, 5338), (2512, 5270), (2635, 5024), (2669, 4960), (2720, 4867), (3140, 4216)]