251305320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{541}}^1$

素因数の和:648

約数の個数: 192

約数和(自身を含む): 889747200

約数和(自身を除く): 638441880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 79, 84, 98, 105, 120, 140, 147, 158, 168, 196, 210, 237, 245, 280, 294, 316, 392, 395, 420, 474, 490, 541, 553, 588, 632, 735, 790, 840, 948, 980, 1082, 1106, 1176, 1185, 1470, 1580, 1623, 1659, 1896, 1960, 2164, 2212, 2370, 2705, 2765, 2940, 3160, 3246, 3318, 3787, 3871, 4328, 4424, 4740, 5410, 5530, 5880, 6492, 6636, 7574, 7742, 8115, 8295, 9480, 10820, 11060, 11361, 11613, 12984, 13272, 15148, 15484, 16230, 16590, 18935, 19355, 21640, 22120, 22722, 23226, 26509, 30296, 30968, 32460, 33180, 37870, 38710, 42739, 45444, 46452, 53018, 56805, 58065, 64920, 66360, 75740, 77420, 79527, 85478, 90888, 92904, 106036, 113610, 116130, 128217, 132545, 151480, 154840, 159054, 170956, 212072, 213695, 227220, 232260, 256434, 265090, 299173, 318108, 341912, 397635, 427390, 454440, 464520, 512868, 530180, 598346, 636216, 641085, 795270, 854780, 897519, 1025736, 1060360, 1196692, 1282170, 1495865, 1590540, 1709560, 1795038, 2094211, 2393384, 2564340, 2991730, 3181080, 3590076, 4188422, 4487595, 5128680, 5983460, 6282633, 7180152, 8376844, 8975190, 10471055, 11966920, 12565266, 16753688, 17950380, 20942110, 25130532, 31413165, 35900760, 41884220, 50261064, 62826330, 83768440, 125652660, 251305320]

約数ペア:

[(1, 251305320), (2, 125652660), (3, 83768440), (4, 62826330), (5, 50261064), (6, 41884220), (7, 35900760), (8, 31413165), (10, 25130532), (12, 20942110), (14, 17950380), (15, 16753688), (20, 12565266), (21, 11966920), (24, 10471055), (28, 8975190), (30, 8376844), (35, 7180152), (40, 6282633), (42, 5983460), (49, 5128680), (56, 4487595), (60, 4188422), (70, 3590076), (79, 3181080), (84, 2991730), (98, 2564340), (105, 2393384), (120, 2094211), (140, 1795038), (147, 1709560), (158, 1590540), (168, 1495865), (196, 1282170), (210, 1196692), (237, 1060360), (245, 1025736), (280, 897519), (294, 854780), (316, 795270), (392, 641085), (395, 636216), (420, 598346), (474, 530180), (490, 512868), (541, 464520), (553, 454440), (588, 427390), (632, 397635), (735, 341912), (790, 318108), (840, 299173), (948, 265090), (980, 256434), (1082, 232260), (1106, 227220), (1176, 213695), (1185, 212072), (1470, 170956), (1580, 159054), (1623, 154840), (1659, 151480), (1896, 132545), (1960, 128217), (2164, 116130), (2212, 113610), (2370, 106036), (2705, 92904), (2765, 90888), (2940, 85478), (3160, 79527), (3246, 77420), (3318, 75740), (3787, 66360), (3871, 64920), (4328, 58065), (4424, 56805), (4740, 53018), (5410, 46452), (5530, 45444), (5880, 42739), (6492, 38710), (6636, 37870), (7574, 33180), (7742, 32460), (8115, 30968), (8295, 30296), (9480, 26509), (10820, 23226), (11060, 22722), (11361, 22120), (11613, 21640), (12984, 19355), (13272, 18935), (15148, 16590), (15484, 16230)]