18955950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9721}}^1$

素因数の和:9749

約数の個数: 48

約数和(自身を含む): 50632176

約数和(自身を除く): 31676226

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, 9721, 19442, 29163, 48605, 58326, 97210, 126373, 145815, 243025, 252746, 291630, 379119, 486050, 631865, 729075, 758238, 1263730, 1458150, 1895595, 3159325, 3791190, 6318650, 9477975, 18955950]

約数ペア:

[(1, 18955950), (2, 9477975), (3, 6318650), (5, 3791190), (6, 3159325), (10, 1895595), (13, 1458150), (15, 1263730), (25, 758238), (26, 729075), (30, 631865), (39, 486050), (50, 379119), (65, 291630), (75, 252746), (78, 243025), (130, 145815), (150, 126373), (195, 97210), (325, 58326), (390, 48605), (650, 29163), (975, 19442), (1950, 9721)]