79290380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{17939}}^1$

素因数の和:17978

約数の個数: 48

約数和(自身を含む): 189876960

約数和(自身を除く): 110586580

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 17939, 35878, 71756, 89695, 179390, 233207, 304963, 358780, 466414, 609926, 932828, 1166035, 1219852, 1524815, 2332070, 3049630, 3964519, 4664140, 6099260, 7929038, 15858076, 19822595, 39645190, 79290380]

約数ペア:

[(1, 79290380), (2, 39645190), (4, 19822595), (5, 15858076), (10, 7929038), (13, 6099260), (17, 4664140), (20, 3964519), (26, 3049630), (34, 2332070), (52, 1524815), (65, 1219852), (68, 1166035), (85, 932828), (130, 609926), (170, 466414), (221, 358780), (260, 304963), (340, 233207), (442, 179390), (884, 89695), (1105, 71756), (2210, 35878), (4420, 17939)]