81389700

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{12919}}^1$

素因数の和:12946

約数の個数: 108

約数和(自身を含む): 291578560

約数和(自身を除く): 210188860

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 50, 60, 63, 70, 75, 84, 90, 100, 105, 126, 140, 150, 175, 180, 210, 225, 252, 300, 315, 350, 420, 450, 525, 630, 700, 900, 1050, 1260, 1575, 2100, 3150, 6300, 12919, 25838, 38757, 51676, 64595, 77514, 90433, 116271, 129190, 155028, 180866, 193785, 232542, 258380, 271299, 322975, 361732, 387570, 452165, 465084, 542598, 581355, 645950, 775140, 813897, 904330, 968925, 1085196, 1162710, 1291900, 1356495, 1627794, 1808660, 1937850, 2260825, 2325420, 2712990, 2906775, 3255588, 3875700, 4069485, 4521650, 5425980, 5813550, 6782475, 8138970, 9043300, 11627100, 13564950, 16277940, 20347425, 27129900, 40694850, 81389700]

約数ペア:

[(1, 81389700), (2, 40694850), (3, 27129900), (4, 20347425), (5, 16277940), (6, 13564950), (7, 11627100), (9, 9043300), (10, 8138970), (12, 6782475), (14, 5813550), (15, 5425980), (18, 4521650), (20, 4069485), (21, 3875700), (25, 3255588), (28, 2906775), (30, 2712990), (35, 2325420), (36, 2260825), (42, 1937850), (45, 1808660), (50, 1627794), (60, 1356495), (63, 1291900), (70, 1162710), (75, 1085196), (84, 968925), (90, 904330), (100, 813897), (105, 775140), (126, 645950), (140, 581355), (150, 542598), (175, 465084), (180, 452165), (210, 387570), (225, 361732), (252, 322975), (300, 271299), (315, 258380), (350, 232542), (420, 193785), (450, 180866), (525, 155028), (630, 129190), (700, 116271), (900, 90433), (1050, 77514), (1260, 64595), (1575, 51676), (2100, 38757), (3150, 25838), (6300, 12919)]