1290228720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{488723}}^1$

素因数の和:488750

約数の個数: 80

約数和(自身を含む): 4363327872

約数和(自身を除く): 3073099152

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 488723, 977446, 1466169, 1954892, 2443615, 2932338, 3909784, 4887230, 5375953, 5864676, 7330845, 7819568, 9774460, 10751906, 11729352, 14661690, 16127859, 19548920, 21503812, 23458704, 26879765, 29323380, 32255718, 39097840, 43007624, 53759530, 58646760, 64511436, 80639295, 86015248, 107519060, 117293520, 129022872, 161278590, 215038120, 258045744, 322557180, 430076240, 645114360, 1290228720]

約数ペア:

[(1, 1290228720), (2, 645114360), (3, 430076240), (4, 322557180), (5, 258045744), (6, 215038120), (8, 161278590), (10, 129022872), (11, 117293520), (12, 107519060), (15, 86015248), (16, 80639295), (20, 64511436), (22, 58646760), (24, 53759530), (30, 43007624), (33, 39097840), (40, 32255718), (44, 29323380), (48, 26879765), (55, 23458704), (60, 21503812), (66, 19548920), (80, 16127859), (88, 14661690), (110, 11729352), (120, 10751906), (132, 9774460), (165, 7819568), (176, 7330845), (220, 5864676), (240, 5375953), (264, 4887230), (330, 3909784), (440, 2932338), (528, 2443615), (660, 1954892), (880, 1466169), (1320, 977446), (2640, 488723)]