20459210740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{804847}}^1$

素因数の和:804928

約数の個数: 48

約数和(自身を含む): 45432059904

約数和(自身を除く): 24972849164

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 310, 410, 620, 820, 1271, 2542, 5084, 6355, 12710, 25420, 804847, 1609694, 3219388, 4024235, 8048470, 16096940, 24950257, 32998727, 49900514, 65997454, 99801028, 124751285, 131994908, 164993635, 249502570, 329987270, 499005140, 659974540, 1022960537, 2045921074, 4091842148, 5114802685, 10229605370, 20459210740]

約数ペア:

[(1, 20459210740), (2, 10229605370), (4, 5114802685), (5, 4091842148), (10, 2045921074), (20, 1022960537), (31, 659974540), (41, 499005140), (62, 329987270), (82, 249502570), (124, 164993635), (155, 131994908), (164, 124751285), (205, 99801028), (310, 65997454), (410, 49900514), (620, 32998727), (820, 24950257), (1271, 16096940), (2542, 8048470), (5084, 4024235), (6355, 3219388), (12710, 1609694), (25420, 804847)]