2004460

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 4499712

約数和(自身を除く): 2495252

約数列:

[1, 2, 4, 5, 10, 20, 31, 53, 61, 62, 106, 122, 124, 155, 212, 244, 265, 305, 310, 530, 610, 620, 1060, 1220, 1643, 1891, 3233, 3286, 3782, 6466, 6572, 7564, 8215, 9455, 12932, 16165, 16430, 18910, 32330, 32860, 37820, 64660, 100223, 200446, 400892, 501115, 1002230, 2004460]

約数ペア:

[(1, 2004460), (2, 1002230), (4, 501115), (5, 400892), (10, 200446), (20, 100223), (31, 64660), (53, 37820), (61, 32860), (62, 32330), (106, 18910), (122, 16430), (124, 16165), (155, 12932), (212, 9455), (244, 8215), (265, 7564), (305, 6572), (310, 6466), (530, 3782), (610, 3286), (620, 3233), (1060, 1891), (1220, 1643)]