121718940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2179}}^1$

素因数の和:2224

約数の個数: 144

約数和(自身を含む): 417513600

約数和(自身を除く): 295794660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 49, 57, 60, 70, 76, 84, 95, 98, 105, 114, 133, 140, 147, 190, 196, 210, 228, 245, 266, 285, 294, 380, 399, 420, 490, 532, 570, 588, 665, 735, 798, 931, 980, 1140, 1330, 1470, 1596, 1862, 1995, 2179, 2660, 2793, 2940, 3724, 3990, 4358, 4655, 5586, 6537, 7980, 8716, 9310, 10895, 11172, 13074, 13965, 15253, 18620, 21790, 26148, 27930, 30506, 32685, 41401, 43580, 45759, 55860, 61012, 65370, 76265, 82802, 91518, 106771, 124203, 130740, 152530, 165604, 183036, 207005, 213542, 228795, 248406, 289807, 305060, 320313, 414010, 427084, 457590, 496812, 533855, 579614, 621015, 640626, 828020, 869421, 915180, 1067710, 1159228, 1242030, 1281252, 1449035, 1601565, 1738842, 2028649, 2135420, 2484060, 2898070, 3203130, 3477684, 4057298, 4347105, 5796140, 6085947, 6406260, 8114596, 8694210, 10143245, 12171894, 17388420, 20286490, 24343788, 30429735, 40572980, 60859470, 121718940]

約数ペア:

[(1, 121718940), (2, 60859470), (3, 40572980), (4, 30429735), (5, 24343788), (6, 20286490), (7, 17388420), (10, 12171894), (12, 10143245), (14, 8694210), (15, 8114596), (19, 6406260), (20, 6085947), (21, 5796140), (28, 4347105), (30, 4057298), (35, 3477684), (38, 3203130), (42, 2898070), (49, 2484060), (57, 2135420), (60, 2028649), (70, 1738842), (76, 1601565), (84, 1449035), (95, 1281252), (98, 1242030), (105, 1159228), (114, 1067710), (133, 915180), (140, 869421), (147, 828020), (190, 640626), (196, 621015), (210, 579614), (228, 533855), (245, 496812), (266, 457590), (285, 427084), (294, 414010), (380, 320313), (399, 305060), (420, 289807), (490, 248406), (532, 228795), (570, 213542), (588, 207005), (665, 183036), (735, 165604), (798, 152530), (931, 130740), (980, 124203), (1140, 106771), (1330, 91518), (1470, 82802), (1596, 76265), (1862, 65370), (1995, 61012), (2179, 55860), (2660, 45759), (2793, 43580), (2940, 41401), (3724, 32685), (3990, 30506), (4358, 27930), (4655, 26148), (5586, 21790), (6537, 18620), (7980, 15253), (8716, 13965), (9310, 13074), (10895, 11172)]