81396910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{397}}^1$

素因数の和:541

約数の個数: 64

約数和(自身を含む): 175374720

約数和(自身を除く): 93977810

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 101, 145, 202, 203, 290, 397, 406, 505, 707, 794, 1010, 1015, 1414, 1985, 2030, 2779, 2929, 3535, 3970, 5558, 5858, 7070, 11513, 13895, 14645, 20503, 23026, 27790, 29290, 40097, 41006, 57565, 80194, 80591, 102515, 115130, 161182, 200485, 205030, 280679, 400970, 402955, 561358, 805910, 1162813, 1403395, 2325626, 2806790, 5814065, 8139691, 11628130, 16279382, 40698455, 81396910]

約数ペア:

[(1, 81396910), (2, 40698455), (5, 16279382), (7, 11628130), (10, 8139691), (14, 5814065), (29, 2806790), (35, 2325626), (58, 1403395), (70, 1162813), (101, 805910), (145, 561358), (202, 402955), (203, 400970), (290, 280679), (397, 205030), (406, 200485), (505, 161182), (707, 115130), (794, 102515), (1010, 80591), (1015, 80194), (1414, 57565), (1985, 41006), (2030, 40097), (2779, 29290), (2929, 27790), (3535, 23026), (3970, 20503), (5558, 14645), (5858, 13895), (7070, 11513)]