18968790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{743}}^1$

素因数の和:813

約数の個数: 64

約数和(自身を含む): 48854016

約数和(自身を除く): 29885226

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 37, 46, 69, 74, 111, 115, 138, 185, 222, 230, 345, 370, 555, 690, 743, 851, 1110, 1486, 1702, 2229, 2553, 3715, 4255, 4458, 5106, 7430, 8510, 11145, 12765, 17089, 22290, 25530, 27491, 34178, 51267, 54982, 82473, 85445, 102534, 137455, 164946, 170890, 256335, 274910, 412365, 512670, 632293, 824730, 1264586, 1896879, 3161465, 3793758, 6322930, 9484395, 18968790]

約数ペア:

[(1, 18968790), (2, 9484395), (3, 6322930), (5, 3793758), (6, 3161465), (10, 1896879), (15, 1264586), (23, 824730), (30, 632293), (37, 512670), (46, 412365), (69, 274910), (74, 256335), (111, 170890), (115, 164946), (138, 137455), (185, 102534), (222, 85445), (230, 82473), (345, 54982), (370, 51267), (555, 34178), (690, 27491), (743, 25530), (851, 22290), (1110, 17089), (1486, 12765), (1702, 11145), (2229, 8510), (2553, 7430), (3715, 5106), (4255, 4458)]