210819910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{461}}^1$

素因数の和:661

約数の個数: 64

約数和(自身を含む): 447068160

約数和(自身を除く): 236248250

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 70, 94, 139, 235, 278, 329, 461, 470, 658, 695, 922, 973, 1390, 1645, 1946, 2305, 3227, 3290, 4610, 4865, 6454, 6533, 9730, 13066, 16135, 21667, 32270, 32665, 43334, 45731, 64079, 65330, 91462, 108335, 128158, 151669, 216670, 228655, 303338, 320395, 448553, 457310, 640790, 758345, 897106, 1516690, 2242765, 3011713, 4485530, 6023426, 15058565, 21081991, 30117130, 42163982, 105409955, 210819910]

約数ペア:

[(1, 210819910), (2, 105409955), (5, 42163982), (7, 30117130), (10, 21081991), (14, 15058565), (35, 6023426), (47, 4485530), (70, 3011713), (94, 2242765), (139, 1516690), (235, 897106), (278, 758345), (329, 640790), (461, 457310), (470, 448553), (658, 320395), (695, 303338), (922, 228655), (973, 216670), (1390, 151669), (1645, 128158), (1946, 108335), (2305, 91462), (3227, 65330), (3290, 64079), (4610, 45731), (4865, 43334), (6454, 32665), (6533, 32270), (9730, 21667), (13066, 16135)]