81606700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1597}}^1$

素因数の和:1691

約数の個数: 72

約数和(自身を含む): 205285472

約数和(自身を除く): 123678772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 73, 100, 140, 146, 175, 292, 350, 365, 511, 700, 730, 1022, 1460, 1597, 1825, 2044, 2555, 3194, 3650, 5110, 6388, 7300, 7985, 10220, 11179, 12775, 15970, 22358, 25550, 31940, 39925, 44716, 51100, 55895, 79850, 111790, 116581, 159700, 223580, 233162, 279475, 466324, 558950, 582905, 816067, 1117900, 1165810, 1632134, 2331620, 2914525, 3264268, 4080335, 5829050, 8160670, 11658100, 16321340, 20401675, 40803350, 81606700]

約数ペア:

[(1, 81606700), (2, 40803350), (4, 20401675), (5, 16321340), (7, 11658100), (10, 8160670), (14, 5829050), (20, 4080335), (25, 3264268), (28, 2914525), (35, 2331620), (50, 1632134), (70, 1165810), (73, 1117900), (100, 816067), (140, 582905), (146, 558950), (175, 466324), (292, 279475), (350, 233162), (365, 223580), (511, 159700), (700, 116581), (730, 111790), (1022, 79850), (1460, 55895), (1597, 51100), (1825, 44716), (2044, 39925), (2555, 31940), (3194, 25550), (3650, 22358), (5110, 15970), (6388, 12775), (7300, 11179), (7985, 10220)]