78158220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2621}}^1$

素因数の和:2711

約数の個数: 96

約数和(自身を含む): 253725696

約数和(自身を除く): 175567476

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 71, 84, 105, 140, 142, 210, 213, 284, 355, 420, 426, 497, 710, 852, 994, 1065, 1420, 1491, 1988, 2130, 2485, 2621, 2982, 4260, 4970, 5242, 5964, 7455, 7863, 9940, 10484, 13105, 14910, 15726, 18347, 26210, 29820, 31452, 36694, 39315, 52420, 55041, 73388, 78630, 91735, 110082, 157260, 183470, 186091, 220164, 275205, 366940, 372182, 550410, 558273, 744364, 930455, 1100820, 1116546, 1302637, 1860910, 2233092, 2605274, 2791365, 3721820, 3907911, 5210548, 5582730, 6513185, 7815822, 11165460, 13026370, 15631644, 19539555, 26052740, 39079110, 78158220]

約数ペア:

[(1, 78158220), (2, 39079110), (3, 26052740), (4, 19539555), (5, 15631644), (6, 13026370), (7, 11165460), (10, 7815822), (12, 6513185), (14, 5582730), (15, 5210548), (20, 3907911), (21, 3721820), (28, 2791365), (30, 2605274), (35, 2233092), (42, 1860910), (60, 1302637), (70, 1116546), (71, 1100820), (84, 930455), (105, 744364), (140, 558273), (142, 550410), (210, 372182), (213, 366940), (284, 275205), (355, 220164), (420, 186091), (426, 183470), (497, 157260), (710, 110082), (852, 91735), (994, 78630), (1065, 73388), (1420, 55041), (1491, 52420), (1988, 39315), (2130, 36694), (2485, 31452), (2621, 29820), (2982, 26210), (4260, 18347), (4970, 15726), (5242, 14910), (5964, 13105), (7455, 10484), (7863, 9940)]