64937840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{677}}^1$

素因数の和:810

約数の個数: 80

約数和(自身を含む): 166462560

約数和(自身を除く): 101524720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 109, 110, 176, 218, 220, 436, 440, 545, 677, 872, 880, 1090, 1199, 1354, 1744, 2180, 2398, 2708, 3385, 4360, 4796, 5416, 5995, 6770, 7447, 8720, 9592, 10832, 11990, 13540, 14894, 19184, 23980, 27080, 29788, 37235, 47960, 54160, 59576, 73793, 74470, 95920, 119152, 147586, 148940, 295172, 297880, 368965, 590344, 595760, 737930, 811723, 1180688, 1475860, 1623446, 2951720, 3246892, 4058615, 5903440, 6493784, 8117230, 12987568, 16234460, 32468920, 64937840]

約数ペア:

[(1, 64937840), (2, 32468920), (4, 16234460), (5, 12987568), (8, 8117230), (10, 6493784), (11, 5903440), (16, 4058615), (20, 3246892), (22, 2951720), (40, 1623446), (44, 1475860), (55, 1180688), (80, 811723), (88, 737930), (109, 595760), (110, 590344), (176, 368965), (218, 297880), (220, 295172), (436, 148940), (440, 147586), (545, 119152), (677, 95920), (872, 74470), (880, 73793), (1090, 59576), (1199, 54160), (1354, 47960), (1744, 37235), (2180, 29788), (2398, 27080), (2708, 23980), (3385, 19184), (4360, 14894), (4796, 13540), (5416, 11990), (5995, 10832), (6770, 9592), (7447, 8720)]