20351730

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{487}}^1$

素因数の和:703

約数の個数: 64

約数和(自身を含む): 56217600

約数和(自身を除く): 35865870

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 199, 210, 398, 487, 597, 974, 995, 1194, 1393, 1461, 1990, 2435, 2786, 2922, 2985, 3409, 4179, 4870, 5970, 6818, 6965, 7305, 8358, 10227, 13930, 14610, 17045, 20454, 20895, 34090, 41790, 51135, 96913, 102270, 193826, 290739, 484565, 581478, 678391, 969130, 1356782, 1453695, 2035173, 2907390, 3391955, 4070346, 6783910, 10175865, 20351730]

約数ペア:

[(1, 20351730), (2, 10175865), (3, 6783910), (5, 4070346), (6, 3391955), (7, 2907390), (10, 2035173), (14, 1453695), (15, 1356782), (21, 969130), (30, 678391), (35, 581478), (42, 484565), (70, 290739), (105, 193826), (199, 102270), (210, 96913), (398, 51135), (487, 41790), (597, 34090), (974, 20895), (995, 20454), (1194, 17045), (1393, 14610), (1461, 13930), (1990, 10227), (2435, 8358), (2786, 7305), (2922, 6965), (2985, 6818), (3409, 5970), (4179, 4870)]