315966080

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:406

約数の個数: 128

約数和(自身を含む): 810006480

約数和(自身を除く): 494040400

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 113, 128, 136, 160, 170, 226, 257, 272, 320, 340, 452, 514, 544, 565, 640, 680, 904, 1028, 1088, 1130, 1285, 1360, 1808, 1921, 2056, 2176, 2260, 2570, 2720, 3616, 3842, 4112, 4369, 4520, 5140, 5440, 7232, 7684, 8224, 8738, 9040, 9605, 10280, 10880, 14464, 15368, 16448, 17476, 18080, 19210, 20560, 21845, 29041, 30736, 32896, 34952, 36160, 38420, 41120, 43690, 58082, 61472, 69904, 72320, 76840, 82240, 87380, 116164, 122944, 139808, 145205, 153680, 164480, 174760, 232328, 245888, 279616, 290410, 307360, 349520, 464656, 493697, 559232, 580820, 614720, 699040, 929312, 987394, 1161640, 1229440, 1398080, 1858624, 1974788, 2323280, 2468485, 2796160, 3717248, 3949576, 4646560, 4936970, 7899152, 9293120, 9873940, 15798304, 18586240, 19747880, 31596608, 39495760, 63193216, 78991520, 157983040, 315966080]

約数ペア:

[(1, 315966080), (2, 157983040), (4, 78991520), (5, 63193216), (8, 39495760), (10, 31596608), (16, 19747880), (17, 18586240), (20, 15798304), (32, 9873940), (34, 9293120), (40, 7899152), (64, 4936970), (68, 4646560), (80, 3949576), (85, 3717248), (113, 2796160), (128, 2468485), (136, 2323280), (160, 1974788), (170, 1858624), (226, 1398080), (257, 1229440), (272, 1161640), (320, 987394), (340, 929312), (452, 699040), (514, 614720), (544, 580820), (565, 559232), (640, 493697), (680, 464656), (904, 349520), (1028, 307360), (1088, 290410), (1130, 279616), (1285, 245888), (1360, 232328), (1808, 174760), (1921, 164480), (2056, 153680), (2176, 145205), (2260, 139808), (2570, 122944), (2720, 116164), (3616, 87380), (3842, 82240), (4112, 76840), (4369, 72320), (4520, 69904), (5140, 61472), (5440, 58082), (7232, 43690), (7684, 41120), (8224, 38420), (8738, 36160), (9040, 34952), (9605, 32896), (10280, 30736), (10880, 29041), (14464, 21845), (15368, 20560), (16448, 19210), (17476, 18080)]