51457900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1721}}^1$

素因数の和:1771

約数の個数: 72

約数和(自身を含む): 125554464

約数和(自身を除く): 74096564

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 25, 26, 46, 50, 52, 65, 92, 100, 115, 130, 230, 260, 299, 325, 460, 575, 598, 650, 1150, 1196, 1300, 1495, 1721, 2300, 2990, 3442, 5980, 6884, 7475, 8605, 14950, 17210, 22373, 29900, 34420, 39583, 43025, 44746, 79166, 86050, 89492, 111865, 158332, 172100, 197915, 223730, 395830, 447460, 514579, 559325, 791660, 989575, 1029158, 1118650, 1979150, 2058316, 2237300, 2572895, 3958300, 5145790, 10291580, 12864475, 25728950, 51457900]

約数ペア:

[(1, 51457900), (2, 25728950), (4, 12864475), (5, 10291580), (10, 5145790), (13, 3958300), (20, 2572895), (23, 2237300), (25, 2058316), (26, 1979150), (46, 1118650), (50, 1029158), (52, 989575), (65, 791660), (92, 559325), (100, 514579), (115, 447460), (130, 395830), (230, 223730), (260, 197915), (299, 172100), (325, 158332), (460, 111865), (575, 89492), (598, 86050), (650, 79166), (1150, 44746), (1196, 43025), (1300, 39583), (1495, 34420), (1721, 29900), (2300, 22373), (2990, 17210), (3442, 14950), (5980, 8605), (6884, 7475)]