18518940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:272

約数の個数: 144

約数和(自身を含む): 62899200

約数和(自身を除く): 44380260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 47, 55, 60, 66, 90, 94, 99, 110, 132, 141, 165, 180, 188, 198, 199, 220, 235, 282, 330, 396, 398, 423, 470, 495, 517, 564, 597, 660, 705, 796, 846, 940, 990, 995, 1034, 1194, 1410, 1551, 1692, 1791, 1980, 1990, 2068, 2115, 2189, 2388, 2585, 2820, 2985, 3102, 3582, 3980, 4230, 4378, 4653, 5170, 5970, 6204, 6567, 7164, 7755, 8460, 8756, 8955, 9306, 9353, 10340, 10945, 11940, 13134, 15510, 17910, 18612, 18706, 19701, 21890, 23265, 26268, 28059, 31020, 32835, 35820, 37412, 39402, 43780, 46530, 46765, 56118, 65670, 78804, 84177, 93060, 93530, 98505, 102883, 112236, 131340, 140295, 168354, 187060, 197010, 205766, 280590, 308649, 336708, 394020, 411532, 420885, 514415, 561180, 617298, 841770, 925947, 1028830, 1234596, 1543245, 1683540, 1851894, 2057660, 3086490, 3703788, 4629735, 6172980, 9259470, 18518940]

約数ペア:

[(1, 18518940), (2, 9259470), (3, 6172980), (4, 4629735), (5, 3703788), (6, 3086490), (9, 2057660), (10, 1851894), (11, 1683540), (12, 1543245), (15, 1234596), (18, 1028830), (20, 925947), (22, 841770), (30, 617298), (33, 561180), (36, 514415), (44, 420885), (45, 411532), (47, 394020), (55, 336708), (60, 308649), (66, 280590), (90, 205766), (94, 197010), (99, 187060), (110, 168354), (132, 140295), (141, 131340), (165, 112236), (180, 102883), (188, 98505), (198, 93530), (199, 93060), (220, 84177), (235, 78804), (282, 65670), (330, 56118), (396, 46765), (398, 46530), (423, 43780), (470, 39402), (495, 37412), (517, 35820), (564, 32835), (597, 31020), (660, 28059), (705, 26268), (796, 23265), (846, 21890), (940, 19701), (990, 18706), (995, 18612), (1034, 17910), (1194, 15510), (1410, 13134), (1551, 11940), (1692, 10945), (1791, 10340), (1980, 9353), (1990, 9306), (2068, 8955), (2115, 8756), (2189, 8460), (2388, 7755), (2585, 7164), (2820, 6567), (2985, 6204), (3102, 5970), (3582, 5170), (3980, 4653), (4230, 4378)]