18780930

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{523}}^1$

素因数の和:565

約数の個数: 128

約数和(自身を含む): 60364800

約数和(自身を除く): 41583870

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 27, 30, 35, 38, 42, 45, 54, 57, 63, 70, 90, 95, 105, 114, 126, 133, 135, 171, 189, 190, 210, 266, 270, 285, 315, 342, 378, 399, 513, 523, 570, 630, 665, 798, 855, 945, 1026, 1046, 1197, 1330, 1569, 1710, 1890, 1995, 2394, 2565, 2615, 3138, 3591, 3661, 3990, 4707, 5130, 5230, 5985, 7182, 7322, 7845, 9414, 9937, 10983, 11970, 14121, 15690, 17955, 18305, 19874, 21966, 23535, 28242, 29811, 32949, 35910, 36610, 47070, 49685, 54915, 59622, 65898, 69559, 70605, 89433, 98847, 99370, 109830, 139118, 141210, 149055, 164745, 178866, 197694, 208677, 268299, 298110, 329490, 347795, 417354, 447165, 494235, 536598, 626031, 695590, 894330, 988470, 1043385, 1252062, 1341495, 1878093, 2086770, 2682990, 3130155, 3756186, 6260310, 9390465, 18780930]

約数ペア:

[(1, 18780930), (2, 9390465), (3, 6260310), (5, 3756186), (6, 3130155), (7, 2682990), (9, 2086770), (10, 1878093), (14, 1341495), (15, 1252062), (18, 1043385), (19, 988470), (21, 894330), (27, 695590), (30, 626031), (35, 536598), (38, 494235), (42, 447165), (45, 417354), (54, 347795), (57, 329490), (63, 298110), (70, 268299), (90, 208677), (95, 197694), (105, 178866), (114, 164745), (126, 149055), (133, 141210), (135, 139118), (171, 109830), (189, 99370), (190, 98847), (210, 89433), (266, 70605), (270, 69559), (285, 65898), (315, 59622), (342, 54915), (378, 49685), (399, 47070), (513, 36610), (523, 35910), (570, 32949), (630, 29811), (665, 28242), (798, 23535), (855, 21966), (945, 19874), (1026, 18305), (1046, 17955), (1197, 15690), (1330, 14121), (1569, 11970), (1710, 10983), (1890, 9937), (1995, 9414), (2394, 7845), (2565, 7322), (2615, 7182), (3138, 5985), (3591, 5230), (3661, 5130), (3990, 4707)]