389970420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^4\times {\mathrm{2707}}^1$

素因数の和:2747

約数の個数: 120

約数和(自身を含む): 1274298144

約数和(自身を除く): 884327724

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 343, 420, 490, 588, 686, 735, 980, 1029, 1372, 1470, 1715, 2058, 2401, 2707, 2940, 3430, 4116, 4802, 5145, 5414, 6860, 7203, 8121, 9604, 10290, 10828, 12005, 13535, 14406, 16242, 18949, 20580, 24010, 27070, 28812, 32484, 36015, 37898, 40605, 48020, 54140, 56847, 72030, 75796, 81210, 94745, 113694, 132643, 144060, 162420, 189490, 227388, 265286, 284235, 378980, 397929, 530572, 568470, 663215, 795858, 928501, 1136940, 1326430, 1591716, 1857002, 1989645, 2652860, 2785503, 3714004, 3979290, 4642505, 5571006, 6499507, 7958580, 9285010, 11142012, 12999014, 13927515, 18570020, 19498521, 25998028, 27855030, 32497535, 38997042, 55710060, 64995070, 77994084, 97492605, 129990140, 194985210, 389970420]

約数ペア:

[(1, 389970420), (2, 194985210), (3, 129990140), (4, 97492605), (5, 77994084), (6, 64995070), (7, 55710060), (10, 38997042), (12, 32497535), (14, 27855030), (15, 25998028), (20, 19498521), (21, 18570020), (28, 13927515), (30, 12999014), (35, 11142012), (42, 9285010), (49, 7958580), (60, 6499507), (70, 5571006), (84, 4642505), (98, 3979290), (105, 3714004), (140, 2785503), (147, 2652860), (196, 1989645), (210, 1857002), (245, 1591716), (294, 1326430), (343, 1136940), (420, 928501), (490, 795858), (588, 663215), (686, 568470), (735, 530572), (980, 397929), (1029, 378980), (1372, 284235), (1470, 265286), (1715, 227388), (2058, 189490), (2401, 162420), (2707, 144060), (2940, 132643), (3430, 113694), (4116, 94745), (4802, 81210), (5145, 75796), (5414, 72030), (6860, 56847), (7203, 54140), (8121, 48020), (9604, 40605), (10290, 37898), (10828, 36015), (12005, 32484), (13535, 28812), (14406, 27070), (16242, 24010), (18949, 20580)]