81615870

素因数分解:

$2^1\times 3^3\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:260

約数の個数: 192

約数和(自身を含む): 262656000

約数和(自身を除く): 181040130

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 31, 35, 42, 45, 49, 54, 62, 63, 70, 90, 93, 98, 105, 126, 135, 147, 155, 186, 189, 199, 210, 217, 245, 270, 279, 294, 310, 315, 378, 398, 434, 441, 465, 490, 558, 597, 630, 651, 735, 837, 882, 930, 945, 995, 1085, 1194, 1302, 1323, 1393, 1395, 1470, 1519, 1674, 1791, 1890, 1953, 1990, 2170, 2205, 2646, 2786, 2790, 2985, 3038, 3255, 3582, 3906, 4179, 4185, 4410, 4557, 5373, 5859, 5970, 6169, 6510, 6615, 6965, 7595, 8358, 8370, 8955, 9114, 9751, 9765, 10746, 11718, 12338, 12537, 13230, 13671, 13930, 15190, 17910, 18507, 19502, 19530, 20895, 22785, 25074, 26865, 27342, 29253, 29295, 30845, 37014, 37611, 41013, 41790, 43183, 45570, 48755, 53730, 55521, 58506, 58590, 61690, 62685, 68355, 75222, 82026, 86366, 87759, 92535, 97510, 111042, 125370, 129549, 136710, 146265, 166563, 175518, 185070, 188055, 205065, 215915, 259098, 263277, 277605, 292530, 302281, 333126, 376110, 388647, 410130, 431830, 438795, 526554, 555210, 604562, 647745, 777294, 832815, 877590, 906843, 1165941, 1295490, 1316385, 1511405, 1665630, 1813686, 1943235, 2331882, 2632770, 2720529, 3022810, 3886470, 4534215, 5441058, 5829705, 8161587, 9068430, 11659410, 13602645, 16323174, 27205290, 40807935, 81615870]

約数ペア:

[(1, 81615870), (2, 40807935), (3, 27205290), (5, 16323174), (6, 13602645), (7, 11659410), (9, 9068430), (10, 8161587), (14, 5829705), (15, 5441058), (18, 4534215), (21, 3886470), (27, 3022810), (30, 2720529), (31, 2632770), (35, 2331882), (42, 1943235), (45, 1813686), (49, 1665630), (54, 1511405), (62, 1316385), (63, 1295490), (70, 1165941), (90, 906843), (93, 877590), (98, 832815), (105, 777294), (126, 647745), (135, 604562), (147, 555210), (155, 526554), (186, 438795), (189, 431830), (199, 410130), (210, 388647), (217, 376110), (245, 333126), (270, 302281), (279, 292530), (294, 277605), (310, 263277), (315, 259098), (378, 215915), (398, 205065), (434, 188055), (441, 185070), (465, 175518), (490, 166563), (558, 146265), (597, 136710), (630, 129549), (651, 125370), (735, 111042), (837, 97510), (882, 92535), (930, 87759), (945, 86366), (995, 82026), (1085, 75222), (1194, 68355), (1302, 62685), (1323, 61690), (1393, 58590), (1395, 58506), (1470, 55521), (1519, 53730), (1674, 48755), (1791, 45570), (1890, 43183), (1953, 41790), (1990, 41013), (2170, 37611), (2205, 37014), (2646, 30845), (2786, 29295), (2790, 29253), (2985, 27342), (3038, 26865), (3255, 25074), (3582, 22785), (3906, 20895), (4179, 19530), (4185, 19502), (4410, 18507), (4557, 17910), (5373, 15190), (5859, 13930), (5970, 13671), (6169, 13230), (6510, 12537), (6615, 12338), (6965, 11718), (7595, 10746), (8358, 9765), (8370, 9751), (8955, 9114)]