18942420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{379}}^1$

素因数の和:422

約数の個数: 144

約数和(自身を含む): 65499840

約数和(自身を除く): 46557420

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 49, 51, 60, 68, 70, 84, 85, 98, 102, 105, 119, 140, 147, 170, 196, 204, 210, 238, 245, 255, 294, 340, 357, 379, 420, 476, 490, 510, 588, 595, 714, 735, 758, 833, 980, 1020, 1137, 1190, 1428, 1470, 1516, 1666, 1785, 1895, 2274, 2380, 2499, 2653, 2940, 3332, 3570, 3790, 4165, 4548, 4998, 5306, 5685, 6443, 7140, 7580, 7959, 8330, 9996, 10612, 11370, 12495, 12886, 13265, 15918, 16660, 18571, 19329, 22740, 24990, 25772, 26530, 31836, 32215, 37142, 38658, 39795, 45101, 49980, 53060, 55713, 64430, 74284, 77316, 79590, 90202, 92855, 96645, 111426, 128860, 135303, 159180, 180404, 185710, 193290, 222852, 225505, 270606, 278565, 315707, 371420, 386580, 451010, 541212, 557130, 631414, 676515, 902020, 947121, 1114260, 1262828, 1353030, 1578535, 1894242, 2706060, 3157070, 3788484, 4735605, 6314140, 9471210, 18942420]

約数ペア:

[(1, 18942420), (2, 9471210), (3, 6314140), (4, 4735605), (5, 3788484), (6, 3157070), (7, 2706060), (10, 1894242), (12, 1578535), (14, 1353030), (15, 1262828), (17, 1114260), (20, 947121), (21, 902020), (28, 676515), (30, 631414), (34, 557130), (35, 541212), (42, 451010), (49, 386580), (51, 371420), (60, 315707), (68, 278565), (70, 270606), (84, 225505), (85, 222852), (98, 193290), (102, 185710), (105, 180404), (119, 159180), (140, 135303), (147, 128860), (170, 111426), (196, 96645), (204, 92855), (210, 90202), (238, 79590), (245, 77316), (255, 74284), (294, 64430), (340, 55713), (357, 53060), (379, 49980), (420, 45101), (476, 39795), (490, 38658), (510, 37142), (588, 32215), (595, 31836), (714, 26530), (735, 25772), (758, 24990), (833, 22740), (980, 19329), (1020, 18571), (1137, 16660), (1190, 15918), (1428, 13265), (1470, 12886), (1516, 12495), (1666, 11370), (1785, 10612), (1895, 9996), (2274, 8330), (2380, 7959), (2499, 7580), (2653, 7140), (2940, 6443), (3332, 5685), (3570, 5306), (3790, 4998), (4165, 4548)]