18926440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2141}}^1$

素因数の和:2182

約数の個数: 64

約数和(自身を含む): 48580560

約数和(自身を除く): 29654120

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2141, 2210, 4282, 4420, 8564, 8840, 10705, 17128, 21410, 27833, 36397, 42820, 55666, 72794, 85640, 111332, 139165, 145588, 181985, 222664, 278330, 291176, 363970, 473161, 556660, 727940, 946322, 1113320, 1455880, 1892644, 2365805, 3785288, 4731610, 9463220, 18926440]

約数ペア:

[(1, 18926440), (2, 9463220), (4, 4731610), (5, 3785288), (8, 2365805), (10, 1892644), (13, 1455880), (17, 1113320), (20, 946322), (26, 727940), (34, 556660), (40, 473161), (52, 363970), (65, 291176), (68, 278330), (85, 222664), (104, 181985), (130, 145588), (136, 139165), (170, 111332), (221, 85640), (260, 72794), (340, 55666), (442, 42820), (520, 36397), (680, 27833), (884, 21410), (1105, 17128), (1768, 10705), (2141, 8840), (2210, 8564), (4282, 4420)]