19912314625

素因数分解:

$5^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{647}}^1\times {\mathrm{2069}}^1$

素因数の和:2755

約数の個数: 64

約数和(自身を含む): 30132311040

約数和(自身を除く): 10219996415

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 125, 175, 425, 595, 647, 875, 2069, 2125, 2975, 3235, 4529, 10345, 10999, 14483, 14875, 16175, 22645, 35173, 51725, 54995, 72415, 76993, 80875, 113225, 175865, 246211, 258625, 274975, 362075, 384965, 566125, 879325, 1231055, 1338643, 1374875, 1810375, 1924825, 4396625, 6155275, 6693215, 9370501, 9624125, 22756931, 30776375, 33466075, 46852505, 113784655, 159298517, 167330375, 234262525, 568923275, 796492585, 1171312625, 2844616375, 3982462925, 19912314625]

約数ペア:

[(1, 19912314625), (5, 3982462925), (7, 2844616375), (17, 1171312625), (25, 796492585), (35, 568923275), (85, 234262525), (119, 167330375), (125, 159298517), (175, 113784655), (425, 46852505), (595, 33466075), (647, 30776375), (875, 22756931), (2069, 9624125), (2125, 9370501), (2975, 6693215), (3235, 6155275), (4529, 4396625), (10345, 1924825), (10999, 1810375), (14483, 1374875), (14875, 1338643), (16175, 1231055), (22645, 879325), (35173, 566125), (51725, 384965), (54995, 362075), (72415, 274975), (76993, 258625), (80875, 246211), (113225, 175865)]