277959920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:263

約数の個数: 160

約数和(自身を含む): 767569920

約数和(自身を除く): 489610000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 79, 80, 103, 112, 122, 140, 158, 206, 244, 280, 305, 316, 395, 412, 427, 488, 515, 553, 560, 610, 632, 721, 790, 824, 854, 976, 1030, 1106, 1220, 1264, 1442, 1580, 1648, 1708, 2060, 2135, 2212, 2440, 2765, 2884, 3160, 3416, 3605, 4120, 4270, 4424, 4819, 4880, 5530, 5768, 6283, 6320, 6832, 7210, 8137, 8240, 8540, 8848, 9638, 11060, 11536, 12566, 14420, 16274, 17080, 19276, 22120, 24095, 25132, 28840, 31415, 32548, 33733, 34160, 38552, 40685, 43981, 44240, 48190, 50264, 56959, 57680, 62830, 65096, 67466, 77104, 81370, 87962, 96380, 100528, 113918, 125660, 130192, 134932, 162740, 168665, 175924, 192760, 219905, 227836, 251320, 269864, 284795, 325480, 337330, 351848, 385520, 439810, 455672, 496357, 502640, 539728, 569590, 650960, 674660, 703696, 879620, 911344, 992714, 1139180, 1349320, 1759240, 1985428, 2278360, 2481785, 2698640, 3474499, 3518480, 3970856, 4556720, 4963570, 6948998, 7941712, 9927140, 13897996, 17372495, 19854280, 27795992, 34744990, 39708560, 55591984, 69489980, 138979960, 277959920]

約数ペア:

[(1, 277959920), (2, 138979960), (4, 69489980), (5, 55591984), (7, 39708560), (8, 34744990), (10, 27795992), (14, 19854280), (16, 17372495), (20, 13897996), (28, 9927140), (35, 7941712), (40, 6948998), (56, 4963570), (61, 4556720), (70, 3970856), (79, 3518480), (80, 3474499), (103, 2698640), (112, 2481785), (122, 2278360), (140, 1985428), (158, 1759240), (206, 1349320), (244, 1139180), (280, 992714), (305, 911344), (316, 879620), (395, 703696), (412, 674660), (427, 650960), (488, 569590), (515, 539728), (553, 502640), (560, 496357), (610, 455672), (632, 439810), (721, 385520), (790, 351848), (824, 337330), (854, 325480), (976, 284795), (1030, 269864), (1106, 251320), (1220, 227836), (1264, 219905), (1442, 192760), (1580, 175924), (1648, 168665), (1708, 162740), (2060, 134932), (2135, 130192), (2212, 125660), (2440, 113918), (2765, 100528), (2884, 96380), (3160, 87962), (3416, 81370), (3605, 77104), (4120, 67466), (4270, 65096), (4424, 62830), (4819, 57680), (4880, 56959), (5530, 50264), (5768, 48190), (6283, 44240), (6320, 43981), (6832, 40685), (7210, 38552), (8137, 34160), (8240, 33733), (8540, 32548), (8848, 31415), (9638, 28840), (11060, 25132), (11536, 24095), (12566, 22120), (14420, 19276), (16274, 17080)]