20161576540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1217}}^1\times {\mathrm{1621}}^1$

素因数の和:2927

約数の個数: 96

約数和(自身を含む): 49121218944

約数和(自身を除く): 28959642404

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1217, 1460, 1621, 2044, 2434, 2555, 3242, 4868, 5110, 6085, 6484, 8105, 8519, 10220, 11347, 12170, 16210, 17038, 22694, 24340, 32420, 34076, 42595, 45388, 56735, 85190, 88841, 113470, 118333, 170380, 177682, 226940, 236666, 355364, 444205, 473332, 591665, 621887, 828331, 888410, 1183330, 1243774, 1656662, 1776820, 1972757, 2366660, 2487548, 3109435, 3313324, 3945514, 4141655, 6218870, 7891028, 8283310, 9863785, 12437740, 13809299, 16566620, 19727570, 27618598, 39455140, 55237196, 69046495, 138092990, 144011261, 276185980, 288022522, 576045044, 720056305, 1008078827, 1440112610, 2016157654, 2880225220, 4032315308, 5040394135, 10080788270, 20161576540]

約数ペア:

[(1, 20161576540), (2, 10080788270), (4, 5040394135), (5, 4032315308), (7, 2880225220), (10, 2016157654), (14, 1440112610), (20, 1008078827), (28, 720056305), (35, 576045044), (70, 288022522), (73, 276185980), (140, 144011261), (146, 138092990), (292, 69046495), (365, 55237196), (511, 39455140), (730, 27618598), (1022, 19727570), (1217, 16566620), (1460, 13809299), (1621, 12437740), (2044, 9863785), (2434, 8283310), (2555, 7891028), (3242, 6218870), (4868, 4141655), (5110, 3945514), (6085, 3313324), (6484, 3109435), (8105, 2487548), (8519, 2366660), (10220, 1972757), (11347, 1776820), (12170, 1656662), (16210, 1243774), (17038, 1183330), (22694, 888410), (24340, 828331), (32420, 621887), (34076, 591665), (42595, 473332), (45388, 444205), (56735, 355364), (85190, 236666), (88841, 226940), (113470, 177682), (118333, 170380)]