77778180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{18787}}^1$

素因数の和:18825

約数の個数: 72

約数和(自身を含む): 246197952

約数和(自身を除く): 168419772

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 18787, 37574, 56361, 75148, 93935, 112722, 169083, 187870, 225444, 281805, 338166, 375740, 432101, 563610, 676332, 845415, 864202, 1127220, 1296303, 1690830, 1728404, 2160505, 2592606, 3381660, 3888909, 4321010, 5185212, 6481515, 7777818, 8642020, 12963030, 15555636, 19444545, 25926060, 38889090, 77778180]

約数ペア:

[(1, 77778180), (2, 38889090), (3, 25926060), (4, 19444545), (5, 15555636), (6, 12963030), (9, 8642020), (10, 7777818), (12, 6481515), (15, 5185212), (18, 4321010), (20, 3888909), (23, 3381660), (30, 2592606), (36, 2160505), (45, 1728404), (46, 1690830), (60, 1296303), (69, 1127220), (90, 864202), (92, 845415), (115, 676332), (138, 563610), (180, 432101), (207, 375740), (230, 338166), (276, 281805), (345, 225444), (414, 187870), (460, 169083), (690, 112722), (828, 93935), (1035, 75148), (1380, 56361), (2070, 37574), (4140, 18787)]