18735640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{79}}^1$

素因数の和:126

約数の個数: 144

約数和(自身を含む): 54583200

約数和(自身を除く): 35847560

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 79, 88, 98, 110, 121, 140, 154, 158, 196, 220, 242, 245, 280, 308, 316, 385, 392, 395, 440, 484, 490, 539, 553, 605, 616, 632, 770, 790, 847, 869, 968, 980, 1078, 1106, 1210, 1540, 1580, 1694, 1738, 1960, 2156, 2212, 2420, 2695, 2765, 3080, 3160, 3388, 3476, 3871, 4235, 4312, 4345, 4424, 4840, 5390, 5530, 5929, 6083, 6776, 6952, 7742, 8470, 8690, 9559, 10780, 11060, 11858, 12166, 15484, 16940, 17380, 19118, 19355, 21560, 22120, 23716, 24332, 29645, 30415, 30968, 33880, 34760, 38236, 38710, 42581, 47432, 47795, 48664, 59290, 60830, 66913, 76472, 77420, 85162, 95590, 118580, 121660, 133826, 154840, 170324, 191180, 212905, 237160, 243320, 267652, 334565, 340648, 382360, 425810, 468391, 535304, 669130, 851620, 936782, 1338260, 1703240, 1873564, 2341955, 2676520, 3747128, 4683910, 9367820, 18735640]

約数ペア:

[(1, 18735640), (2, 9367820), (4, 4683910), (5, 3747128), (7, 2676520), (8, 2341955), (10, 1873564), (11, 1703240), (14, 1338260), (20, 936782), (22, 851620), (28, 669130), (35, 535304), (40, 468391), (44, 425810), (49, 382360), (55, 340648), (56, 334565), (70, 267652), (77, 243320), (79, 237160), (88, 212905), (98, 191180), (110, 170324), (121, 154840), (140, 133826), (154, 121660), (158, 118580), (196, 95590), (220, 85162), (242, 77420), (245, 76472), (280, 66913), (308, 60830), (316, 59290), (385, 48664), (392, 47795), (395, 47432), (440, 42581), (484, 38710), (490, 38236), (539, 34760), (553, 33880), (605, 30968), (616, 30415), (632, 29645), (770, 24332), (790, 23716), (847, 22120), (869, 21560), (968, 19355), (980, 19118), (1078, 17380), (1106, 16940), (1210, 15484), (1540, 12166), (1580, 11858), (1694, 11060), (1738, 10780), (1960, 9559), (2156, 8690), (2212, 8470), (2420, 7742), (2695, 6952), (2765, 6776), (3080, 6083), (3160, 5929), (3388, 5530), (3476, 5390), (3871, 4840), (4235, 4424), (4312, 4345)]