429680

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:185

約数の個数: 40

約数和(自身を含む): 1031184

約数和(自身を除く): 601504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 131, 164, 205, 262, 328, 410, 524, 655, 656, 820, 1048, 1310, 1640, 2096, 2620, 3280, 5240, 5371, 10480, 10742, 21484, 26855, 42968, 53710, 85936, 107420, 214840, 429680]

約数ペア:

[(1, 429680), (2, 214840), (4, 107420), (5, 85936), (8, 53710), (10, 42968), (16, 26855), (20, 21484), (40, 10742), (41, 10480), (80, 5371), (82, 5240), (131, 3280), (164, 2620), (205, 2096), (262, 1640), (328, 1310), (410, 1048), (524, 820), (655, 656)]