20145960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{523}}^1$

素因数の和:647

約数の個数: 96

約数和(自身を含む): 66212640

約数和(自身を除く): 46066680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 107, 120, 180, 214, 321, 360, 428, 523, 535, 642, 856, 963, 1046, 1070, 1284, 1569, 1605, 1926, 2092, 2140, 2568, 2615, 3138, 3210, 3852, 4184, 4280, 4707, 4815, 5230, 6276, 6420, 7704, 7845, 9414, 9630, 10460, 12552, 12840, 15690, 18828, 19260, 20920, 23535, 31380, 37656, 38520, 47070, 55961, 62760, 94140, 111922, 167883, 188280, 223844, 279805, 335766, 447688, 503649, 559610, 671532, 839415, 1007298, 1119220, 1343064, 1678830, 2014596, 2238440, 2518245, 3357660, 4029192, 5036490, 6715320, 10072980, 20145960]

約数ペア:

[(1, 20145960), (2, 10072980), (3, 6715320), (4, 5036490), (5, 4029192), (6, 3357660), (8, 2518245), (9, 2238440), (10, 2014596), (12, 1678830), (15, 1343064), (18, 1119220), (20, 1007298), (24, 839415), (30, 671532), (36, 559610), (40, 503649), (45, 447688), (60, 335766), (72, 279805), (90, 223844), (107, 188280), (120, 167883), (180, 111922), (214, 94140), (321, 62760), (360, 55961), (428, 47070), (523, 38520), (535, 37656), (642, 31380), (856, 23535), (963, 20920), (1046, 19260), (1070, 18828), (1284, 15690), (1569, 12840), (1605, 12552), (1926, 10460), (2092, 9630), (2140, 9414), (2568, 7845), (2615, 7704), (3138, 6420), (3210, 6276), (3852, 5230), (4184, 4815), (4280, 4707)]