31381020

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{587}}^1$

素因数の和:622

約数の個数: 144

約数和(自身を含む): 107872128

約数和(自身を除く): 76491108

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 81, 90, 99, 108, 110, 132, 135, 162, 165, 180, 198, 220, 243, 270, 297, 324, 330, 396, 405, 486, 495, 540, 587, 594, 660, 810, 891, 972, 990, 1174, 1188, 1215, 1485, 1620, 1761, 1782, 1980, 2348, 2430, 2673, 2935, 2970, 3522, 3564, 4455, 4860, 5283, 5346, 5870, 5940, 6457, 7044, 8805, 8910, 10566, 10692, 11740, 12914, 13365, 15849, 17610, 17820, 19371, 21132, 25828, 26415, 26730, 31698, 32285, 35220, 38742, 47547, 52830, 53460, 58113, 63396, 64570, 77484, 79245, 95094, 96855, 105660, 116226, 129140, 142641, 158490, 174339, 190188, 193710, 232452, 237735, 285282, 290565, 316980, 348678, 387420, 475470, 523017, 570564, 581130, 697356, 713205, 871695, 950940, 1046034, 1162260, 1426410, 1569051, 1743390, 2092068, 2615085, 2852820, 3138102, 3486780, 5230170, 6276204, 7845255, 10460340, 15690510, 31381020]

約数ペア:

[(1, 31381020), (2, 15690510), (3, 10460340), (4, 7845255), (5, 6276204), (6, 5230170), (9, 3486780), (10, 3138102), (11, 2852820), (12, 2615085), (15, 2092068), (18, 1743390), (20, 1569051), (22, 1426410), (27, 1162260), (30, 1046034), (33, 950940), (36, 871695), (44, 713205), (45, 697356), (54, 581130), (55, 570564), (60, 523017), (66, 475470), (81, 387420), (90, 348678), (99, 316980), (108, 290565), (110, 285282), (132, 237735), (135, 232452), (162, 193710), (165, 190188), (180, 174339), (198, 158490), (220, 142641), (243, 129140), (270, 116226), (297, 105660), (324, 96855), (330, 95094), (396, 79245), (405, 77484), (486, 64570), (495, 63396), (540, 58113), (587, 53460), (594, 52830), (660, 47547), (810, 38742), (891, 35220), (972, 32285), (990, 31698), (1174, 26730), (1188, 26415), (1215, 25828), (1485, 21132), (1620, 19371), (1761, 17820), (1782, 17610), (1980, 15849), (2348, 13365), (2430, 12914), (2673, 11740), (2935, 10692), (2970, 10566), (3522, 8910), (3564, 8805), (4455, 7044), (4860, 6457), (5283, 5940), (5346, 5870)]