21972500

素因数分解:

$2^2\times 5^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:99

約数の個数: 120

約数和(自身を含む): 56681856

約数和(自身を除く): 34709356

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 25, 34, 44, 47, 50, 55, 68, 85, 94, 100, 110, 125, 170, 187, 188, 220, 235, 250, 275, 340, 374, 425, 470, 500, 517, 550, 625, 748, 799, 850, 935, 940, 1034, 1100, 1175, 1250, 1375, 1598, 1700, 1870, 2068, 2125, 2350, 2500, 2585, 2750, 3196, 3740, 3995, 4250, 4675, 4700, 5170, 5500, 5875, 6875, 7990, 8500, 8789, 9350, 10340, 10625, 11750, 12925, 13750, 15980, 17578, 18700, 19975, 21250, 23375, 23500, 25850, 27500, 29375, 35156, 39950, 42500, 43945, 46750, 51700, 58750, 64625, 79900, 87890, 93500, 99875, 116875, 117500, 129250, 175780, 199750, 219725, 233750, 258500, 323125, 399500, 439450, 467500, 499375, 646250, 878900, 998750, 1098625, 1292500, 1997500, 2197250, 4394500, 5493125, 10986250, 21972500]

約数ペア:

[(1, 21972500), (2, 10986250), (4, 5493125), (5, 4394500), (10, 2197250), (11, 1997500), (17, 1292500), (20, 1098625), (22, 998750), (25, 878900), (34, 646250), (44, 499375), (47, 467500), (50, 439450), (55, 399500), (68, 323125), (85, 258500), (94, 233750), (100, 219725), (110, 199750), (125, 175780), (170, 129250), (187, 117500), (188, 116875), (220, 99875), (235, 93500), (250, 87890), (275, 79900), (340, 64625), (374, 58750), (425, 51700), (470, 46750), (500, 43945), (517, 42500), (550, 39950), (625, 35156), (748, 29375), (799, 27500), (850, 25850), (935, 23500), (940, 23375), (1034, 21250), (1100, 19975), (1175, 18700), (1250, 17578), (1375, 15980), (1598, 13750), (1700, 12925), (1870, 11750), (2068, 10625), (2125, 10340), (2350, 9350), (2500, 8789), (2585, 8500), (2750, 7990), (3196, 6875), (3740, 5875), (3995, 5500), (4250, 5170), (4675, 4700)]