79028920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:245

約数の個数: 128

約数和(自身を含む): 204042240

約数和(自身を除く): 125013320

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 31, 34, 40, 46, 62, 68, 85, 92, 115, 124, 136, 155, 163, 170, 184, 230, 248, 310, 326, 340, 391, 460, 527, 620, 652, 680, 713, 782, 815, 920, 1054, 1240, 1304, 1426, 1564, 1630, 1955, 2108, 2635, 2771, 2852, 3128, 3260, 3565, 3749, 3910, 4216, 5053, 5270, 5542, 5704, 6520, 7130, 7498, 7820, 10106, 10540, 11084, 12121, 13855, 14260, 14996, 15640, 18745, 20212, 21080, 22168, 24242, 25265, 27710, 28520, 29992, 37490, 40424, 48484, 50530, 55420, 60605, 63733, 74980, 85901, 96968, 101060, 110840, 116219, 121210, 127466, 149960, 171802, 202120, 232438, 242420, 254932, 318665, 343604, 429505, 464876, 484840, 509864, 581095, 637330, 687208, 859010, 929752, 1162190, 1274660, 1718020, 1975723, 2324380, 2549320, 3436040, 3951446, 4648760, 7902892, 9878615, 15805784, 19757230, 39514460, 79028920]

約数ペア:

[(1, 79028920), (2, 39514460), (4, 19757230), (5, 15805784), (8, 9878615), (10, 7902892), (17, 4648760), (20, 3951446), (23, 3436040), (31, 2549320), (34, 2324380), (40, 1975723), (46, 1718020), (62, 1274660), (68, 1162190), (85, 929752), (92, 859010), (115, 687208), (124, 637330), (136, 581095), (155, 509864), (163, 484840), (170, 464876), (184, 429505), (230, 343604), (248, 318665), (310, 254932), (326, 242420), (340, 232438), (391, 202120), (460, 171802), (527, 149960), (620, 127466), (652, 121210), (680, 116219), (713, 110840), (782, 101060), (815, 96968), (920, 85901), (1054, 74980), (1240, 63733), (1304, 60605), (1426, 55420), (1564, 50530), (1630, 48484), (1955, 40424), (2108, 37490), (2635, 29992), (2771, 28520), (2852, 27710), (3128, 25265), (3260, 24242), (3565, 22168), (3749, 21080), (3910, 20212), (4216, 18745), (5053, 15640), (5270, 14996), (5542, 14260), (5704, 13855), (6520, 12121), (7130, 11084), (7498, 10540), (7820, 10106)]