2019980560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{797}}^1\times {\mathrm{2437}}^1$

素因数の和:3260

約数の個数: 80

約数和(自身を含む): 5066144496

約数和(自身を除く): 3046163936

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 797, 1040, 1594, 2437, 3188, 3985, 4874, 6376, 7970, 9748, 10361, 12185, 12752, 15940, 19496, 20722, 24370, 31681, 31880, 38992, 41444, 48740, 51805, 63362, 63760, 82888, 97480, 103610, 126724, 158405, 165776, 194960, 207220, 253448, 316810, 414440, 506896, 633620, 828880, 1267240, 1942289, 2534480, 3884578, 7769156, 9711445, 15538312, 19422890, 25249757, 31076624, 38845780, 50499514, 77691560, 100999028, 126248785, 155383120, 201998056, 252497570, 403996112, 504995140, 1009990280, 2019980560]

約数ペア:

[(1, 2019980560), (2, 1009990280), (4, 504995140), (5, 403996112), (8, 252497570), (10, 201998056), (13, 155383120), (16, 126248785), (20, 100999028), (26, 77691560), (40, 50499514), (52, 38845780), (65, 31076624), (80, 25249757), (104, 19422890), (130, 15538312), (208, 9711445), (260, 7769156), (520, 3884578), (797, 2534480), (1040, 1942289), (1594, 1267240), (2437, 828880), (3188, 633620), (3985, 506896), (4874, 414440), (6376, 316810), (7970, 253448), (9748, 207220), (10361, 194960), (12185, 165776), (12752, 158405), (15940, 126724), (19496, 103610), (20722, 97480), (24370, 82888), (31681, 63760), (31880, 63362), (38992, 51805), (41444, 48740)]