31290840

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{4139}}^1$

素因数の和:4166

約数の個数: 128

約数和(自身を含む): 119232000

約数和(自身を除く): 87941160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3780, 4139, 7560, 8278, 12417, 16556, 20695, 24834, 28973, 33112, 37251, 41390, 49668, 57946, 62085, 74502, 82780, 86919, 99336, 111753, 115892, 124170, 144865, 149004, 165560, 173838, 186255, 223506, 231784, 248340, 260757, 289730, 298008, 347676, 372510, 434595, 447012, 496680, 521514, 558765, 579460, 695352, 745020, 782271, 869190, 894024, 1043028, 1117530, 1158920, 1303785, 1490040, 1564542, 1738380, 2086056, 2235060, 2607570, 3129084, 3476760, 3911355, 4470120, 5215140, 6258168, 7822710, 10430280, 15645420, 31290840]

約数ペア:

[(1, 31290840), (2, 15645420), (3, 10430280), (4, 7822710), (5, 6258168), (6, 5215140), (7, 4470120), (8, 3911355), (9, 3476760), (10, 3129084), (12, 2607570), (14, 2235060), (15, 2086056), (18, 1738380), (20, 1564542), (21, 1490040), (24, 1303785), (27, 1158920), (28, 1117530), (30, 1043028), (35, 894024), (36, 869190), (40, 782271), (42, 745020), (45, 695352), (54, 579460), (56, 558765), (60, 521514), (63, 496680), (70, 447012), (72, 434595), (84, 372510), (90, 347676), (105, 298008), (108, 289730), (120, 260757), (126, 248340), (135, 231784), (140, 223506), (168, 186255), (180, 173838), (189, 165560), (210, 149004), (216, 144865), (252, 124170), (270, 115892), (280, 111753), (315, 99336), (360, 86919), (378, 82780), (420, 74502), (504, 62085), (540, 57946), (630, 49668), (756, 41390), (840, 37251), (945, 33112), (1080, 28973), (1260, 24834), (1512, 20695), (1890, 16556), (2520, 12417), (3780, 8278), (4139, 7560)]