30907480

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:364

約数の個数: 64

約数和(自身を含む): 72316800

約数和(自身を除く): 41409320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 61, 106, 122, 212, 239, 244, 265, 305, 424, 478, 488, 530, 610, 956, 1060, 1195, 1220, 1912, 2120, 2390, 2440, 3233, 4780, 6466, 9560, 12667, 12932, 14579, 16165, 25334, 25864, 29158, 32330, 50668, 58316, 63335, 64660, 72895, 101336, 116632, 126670, 129320, 145790, 253340, 291580, 506680, 583160, 772687, 1545374, 3090748, 3863435, 6181496, 7726870, 15453740, 30907480]

約数ペア:

[(1, 30907480), (2, 15453740), (4, 7726870), (5, 6181496), (8, 3863435), (10, 3090748), (20, 1545374), (40, 772687), (53, 583160), (61, 506680), (106, 291580), (122, 253340), (212, 145790), (239, 129320), (244, 126670), (265, 116632), (305, 101336), (424, 72895), (478, 64660), (488, 63335), (530, 58316), (610, 50668), (956, 32330), (1060, 29158), (1195, 25864), (1220, 25334), (1912, 16165), (2120, 14579), (2390, 12932), (2440, 12667), (3233, 9560), (4780, 6466)]