826639580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{16139}}^1$

素因数の和:16358

約数の個数: 48

約数和(自身を含む): 1879083360

約数和(自身を除く): 1052443780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 197, 260, 394, 788, 985, 1970, 2561, 3940, 5122, 10244, 12805, 16139, 25610, 32278, 51220, 64556, 80695, 161390, 209807, 322780, 419614, 839228, 1049035, 2098070, 3179383, 4196140, 6358766, 12717532, 15896915, 31793830, 41331979, 63587660, 82663958, 165327916, 206659895, 413319790, 826639580]

約数ペア:

[(1, 826639580), (2, 413319790), (4, 206659895), (5, 165327916), (10, 82663958), (13, 63587660), (20, 41331979), (26, 31793830), (52, 15896915), (65, 12717532), (130, 6358766), (197, 4196140), (260, 3179383), (394, 2098070), (788, 1049035), (985, 839228), (1970, 419614), (2561, 322780), (3940, 209807), (5122, 161390), (10244, 80695), (12805, 64556), (16139, 51220), (25610, 32278)]