20453580

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{773}}^1$

素因数の和:805

約数の個数: 144

約数和(自身を含む): 74118240

約数和(自身を除く): 53664660

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 490, 540, 588, 630, 735, 756, 773, 882, 945, 980, 1260, 1323, 1470, 1546, 1764, 1890, 2205, 2319, 2646, 2940, 3092, 3780, 3865, 4410, 4638, 5292, 5411, 6615, 6957, 7730, 8820, 9276, 10822, 11595, 13230, 13914, 15460, 16233, 20871, 21644, 23190, 26460, 27055, 27828, 32466, 34785, 37877, 41742, 46380, 48699, 54110, 64932, 69570, 75754, 81165, 83484, 97398, 104355, 108220, 113631, 139140, 146097, 151508, 162330, 189385, 194796, 208710, 227262, 243495, 292194, 324660, 340893, 378770, 417420, 454524, 486990, 568155, 584388, 681786, 730485, 757540, 973980, 1022679, 1136310, 1363572, 1460970, 1704465, 2045358, 2272620, 2921940, 3408930, 4090716, 5113395, 6817860, 10226790, 20453580]

約数ペア:

[(1, 20453580), (2, 10226790), (3, 6817860), (4, 5113395), (5, 4090716), (6, 3408930), (7, 2921940), (9, 2272620), (10, 2045358), (12, 1704465), (14, 1460970), (15, 1363572), (18, 1136310), (20, 1022679), (21, 973980), (27, 757540), (28, 730485), (30, 681786), (35, 584388), (36, 568155), (42, 486990), (45, 454524), (49, 417420), (54, 378770), (60, 340893), (63, 324660), (70, 292194), (84, 243495), (90, 227262), (98, 208710), (105, 194796), (108, 189385), (126, 162330), (135, 151508), (140, 146097), (147, 139140), (180, 113631), (189, 108220), (196, 104355), (210, 97398), (245, 83484), (252, 81165), (270, 75754), (294, 69570), (315, 64932), (378, 54110), (420, 48699), (441, 46380), (490, 41742), (540, 37877), (588, 34785), (630, 32466), (735, 27828), (756, 27055), (773, 26460), (882, 23190), (945, 21644), (980, 20871), (1260, 16233), (1323, 15460), (1470, 13914), (1546, 13230), (1764, 11595), (1890, 10822), (2205, 9276), (2319, 8820), (2646, 7730), (2940, 6957), (3092, 6615), (3780, 5411), (3865, 5292), (4410, 4638)]