253477980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{991}}^1$

素因数の和:1049

約数の個数: 216

約数和(自身を含む): 926190720

約数和(自身を除く): 672712740

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 29, 30, 35, 36, 42, 45, 49, 58, 60, 63, 70, 84, 87, 90, 98, 105, 116, 126, 140, 145, 147, 174, 180, 196, 203, 210, 245, 252, 261, 290, 294, 315, 348, 406, 420, 435, 441, 490, 522, 580, 588, 609, 630, 735, 812, 870, 882, 980, 991, 1015, 1044, 1218, 1260, 1305, 1421, 1470, 1740, 1764, 1827, 1982, 2030, 2205, 2436, 2610, 2842, 2940, 2973, 3045, 3654, 3964, 4060, 4263, 4410, 4955, 5220, 5684, 5946, 6090, 6937, 7105, 7308, 8526, 8820, 8919, 9135, 9910, 11892, 12180, 12789, 13874, 14210, 14865, 17052, 17838, 18270, 19820, 20811, 21315, 25578, 27748, 28420, 28739, 29730, 34685, 35676, 36540, 41622, 42630, 44595, 48559, 51156, 57478, 59460, 62433, 63945, 69370, 83244, 85260, 86217, 89190, 97118, 104055, 114956, 124866, 127890, 138740, 143695, 145677, 172434, 178380, 194236, 201173, 208110, 242795, 249732, 255780, 258651, 287390, 291354, 312165, 344868, 402346, 416220, 431085, 437031, 485590, 517302, 574780, 582708, 603519, 624330, 728385, 804692, 862170, 874062, 971180, 1005865, 1034604, 1207038, 1248660, 1293255, 1408211, 1456770, 1724340, 1748124, 1810557, 2011730, 2185155, 2414076, 2586510, 2816422, 2913540, 3017595, 3621114, 4023460, 4224633, 4370310, 5173020, 5632844, 6035190, 7041055, 7242228, 8449266, 8740620, 9052785, 12070380, 12673899, 14082110, 16898532, 18105570, 21123165, 25347798, 28164220, 36211140, 42246330, 50695596, 63369495, 84492660, 126738990, 253477980]

約数ペア:

[(1, 253477980), (2, 126738990), (3, 84492660), (4, 63369495), (5, 50695596), (6, 42246330), (7, 36211140), (9, 28164220), (10, 25347798), (12, 21123165), (14, 18105570), (15, 16898532), (18, 14082110), (20, 12673899), (21, 12070380), (28, 9052785), (29, 8740620), (30, 8449266), (35, 7242228), (36, 7041055), (42, 6035190), (45, 5632844), (49, 5173020), (58, 4370310), (60, 4224633), (63, 4023460), (70, 3621114), (84, 3017595), (87, 2913540), (90, 2816422), (98, 2586510), (105, 2414076), (116, 2185155), (126, 2011730), (140, 1810557), (145, 1748124), (147, 1724340), (174, 1456770), (180, 1408211), (196, 1293255), (203, 1248660), (210, 1207038), (245, 1034604), (252, 1005865), (261, 971180), (290, 874062), (294, 862170), (315, 804692), (348, 728385), (406, 624330), (420, 603519), (435, 582708), (441, 574780), (490, 517302), (522, 485590), (580, 437031), (588, 431085), (609, 416220), (630, 402346), (735, 344868), (812, 312165), (870, 291354), (882, 287390), (980, 258651), (991, 255780), (1015, 249732), (1044, 242795), (1218, 208110), (1260, 201173), (1305, 194236), (1421, 178380), (1470, 172434), (1740, 145677), (1764, 143695), (1827, 138740), (1982, 127890), (2030, 124866), (2205, 114956), (2436, 104055), (2610, 97118), (2842, 89190), (2940, 86217), (2973, 85260), (3045, 83244), (3654, 69370), (3964, 63945), (4060, 62433), (4263, 59460), (4410, 57478), (4955, 51156), (5220, 48559), (5684, 44595), (5946, 42630), (6090, 41622), (6937, 36540), (7105, 35676), (7308, 34685), (8526, 29730), (8820, 28739), (8919, 28420), (9135, 27748), (9910, 25578), (11892, 21315), (12180, 20811), (12789, 19820), (13874, 18270), (14210, 17838), (14865, 17052)]