20090356

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:173

約数の個数: 72

約数和(自身を含む): 43377152

約数和(自身を除く): 23286796

約数列:

[1, 2, 4, 11, 13, 22, 26, 31, 44, 52, 62, 103, 121, 124, 143, 206, 242, 286, 341, 403, 412, 484, 572, 682, 806, 1133, 1339, 1364, 1573, 1612, 2266, 2678, 3146, 3193, 3751, 4433, 4532, 5356, 6292, 6386, 7502, 8866, 12463, 12772, 14729, 15004, 17732, 24926, 29458, 35123, 41509, 48763, 49852, 58916, 70246, 83018, 97526, 140492, 162019, 166036, 195052, 324038, 386353, 456599, 648076, 772706, 913198, 1545412, 1826396, 5022589, 10045178, 20090356]

約数ペア:

[(1, 20090356), (2, 10045178), (4, 5022589), (11, 1826396), (13, 1545412), (22, 913198), (26, 772706), (31, 648076), (44, 456599), (52, 386353), (62, 324038), (103, 195052), (121, 166036), (124, 162019), (143, 140492), (206, 97526), (242, 83018), (286, 70246), (341, 58916), (403, 49852), (412, 48763), (484, 41509), (572, 35123), (682, 29458), (806, 24926), (1133, 17732), (1339, 15004), (1364, 14729), (1573, 12772), (1612, 12463), (2266, 8866), (2678, 7502), (3146, 6386), (3193, 6292), (3751, 5356), (4433, 4532)]