280298060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{173}}^1$

素因数の和:423

約数の個数: 96

約数和(自身を含む): 690342912

約数和(自身を除く): 410044852

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 163, 173, 284, 326, 346, 355, 497, 652, 692, 710, 815, 865, 994, 1141, 1211, 1420, 1630, 1730, 1988, 2282, 2422, 2485, 3260, 3460, 4564, 4844, 4970, 5705, 6055, 9940, 11410, 11573, 12110, 12283, 22820, 23146, 24220, 24566, 28199, 46292, 49132, 56398, 57865, 61415, 81011, 85981, 112796, 115730, 122830, 140995, 162022, 171962, 197393, 231460, 245660, 281990, 324044, 343924, 394786, 405055, 429905, 563980, 789572, 810110, 859810, 986965, 1620220, 1719620, 1973930, 2002129, 3947860, 4004258, 8008516, 10010645, 14014903, 20021290, 28029806, 40042580, 56059612, 70074515, 140149030, 280298060]

約数ペア:

[(1, 280298060), (2, 140149030), (4, 70074515), (5, 56059612), (7, 40042580), (10, 28029806), (14, 20021290), (20, 14014903), (28, 10010645), (35, 8008516), (70, 4004258), (71, 3947860), (140, 2002129), (142, 1973930), (163, 1719620), (173, 1620220), (284, 986965), (326, 859810), (346, 810110), (355, 789572), (497, 563980), (652, 429905), (692, 405055), (710, 394786), (815, 343924), (865, 324044), (994, 281990), (1141, 245660), (1211, 231460), (1420, 197393), (1630, 171962), (1730, 162022), (1988, 140995), (2282, 122830), (2422, 115730), (2485, 112796), (3260, 85981), (3460, 81011), (4564, 61415), (4844, 57865), (4970, 56398), (5705, 49132), (6055, 46292), (9940, 28199), (11410, 24566), (11573, 24220), (12110, 23146), (12283, 22820)]