81606880

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16453}}^1$

素因数の和:16499

約数の個数: 48

約数和(自身を含む): 199027584

約数和(自身を除く): 117420704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 16453, 32906, 65812, 82265, 131624, 164530, 263248, 329060, 510043, 526496, 658120, 1020086, 1316240, 2040172, 2550215, 2632480, 4080344, 5100430, 8160688, 10200860, 16321376, 20401720, 40803440, 81606880]

約数ペア:

[(1, 81606880), (2, 40803440), (4, 20401720), (5, 16321376), (8, 10200860), (10, 8160688), (16, 5100430), (20, 4080344), (31, 2632480), (32, 2550215), (40, 2040172), (62, 1316240), (80, 1020086), (124, 658120), (155, 526496), (160, 510043), (248, 329060), (310, 263248), (496, 164530), (620, 131624), (992, 82265), (1240, 65812), (2480, 32906), (4960, 16453)]