18991050

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9739}}^1$

素因数の和:9767

約数の個数: 48

約数和(自身を含む): 50725920

約数和(自身を除く): 31734870

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 9739, 19478, 29217, 48695, 58434, 97390, 126607, 146085, 243475, 253214, 292170, 379821, 486950, 633035, 730425, 759642, 1266070, 1460850, 1899105, 3165175, 3798210, 6330350, 9495525, 18991050]

約数ペア:

[(1, 18991050), (2, 9495525), (3, 6330350), (5, 3798210), (6, 3165175), (10, 1899105), (13, 1460850), (15, 1266070), (25, 759642), (26, 730425), (30, 633035), (39, 486950), (50, 379821), (65, 292170), (75, 253214), (78, 243475), (130, 146085), (150, 126607), (195, 97390), (325, 58434), (390, 48695), (650, 29217), (975, 19478), (1950, 9739)]