15727720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{229}}^1$

素因数の和:358

約数の個数: 64

約数和(自身を含む): 38005200

約数和(自身を除く): 22277480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 101, 136, 170, 202, 229, 340, 404, 458, 505, 680, 808, 916, 1010, 1145, 1717, 1832, 2020, 2290, 3434, 3893, 4040, 4580, 6868, 7786, 8585, 9160, 13736, 15572, 17170, 19465, 23129, 31144, 34340, 38930, 46258, 68680, 77860, 92516, 115645, 155720, 185032, 231290, 393193, 462580, 786386, 925160, 1572772, 1965965, 3145544, 3931930, 7863860, 15727720]

約数ペア:

[(1, 15727720), (2, 7863860), (4, 3931930), (5, 3145544), (8, 1965965), (10, 1572772), (17, 925160), (20, 786386), (34, 462580), (40, 393193), (68, 231290), (85, 185032), (101, 155720), (136, 115645), (170, 92516), (202, 77860), (229, 68680), (340, 46258), (404, 38930), (458, 34340), (505, 31144), (680, 23129), (808, 19465), (916, 17170), (1010, 15572), (1145, 13736), (1717, 9160), (1832, 8585), (2020, 7786), (2290, 6868), (3434, 4580), (3893, 4040)]