309761920

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1201}}^1$

素因数の和:1264

約数の個数: 128

約数和(自身を含む): 823898880

約数和(自身を除く): 514136960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 260, 310, 320, 403, 416, 496, 520, 620, 640, 806, 832, 992, 1040, 1201, 1240, 1612, 1664, 1984, 2015, 2080, 2402, 2480, 3224, 3968, 4030, 4160, 4804, 4960, 6005, 6448, 8060, 8320, 9608, 9920, 12010, 12896, 15613, 16120, 19216, 19840, 24020, 25792, 31226, 32240, 37231, 38432, 48040, 51584, 62452, 64480, 74462, 76864, 78065, 96080, 124904, 128960, 148924, 153728, 156130, 186155, 192160, 249808, 257920, 297848, 312260, 372310, 384320, 484003, 499616, 595696, 624520, 744620, 768640, 968006, 999232, 1191392, 1249040, 1489240, 1936012, 1998464, 2382784, 2420015, 2498080, 2978480, 3872024, 4765568, 4840030, 4996160, 5956960, 7744048, 9680060, 9992320, 11913920, 15488096, 19360120, 23827840, 30976192, 38720240, 61952384, 77440480, 154880960, 309761920]

約数ペア:

[(1, 309761920), (2, 154880960), (4, 77440480), (5, 61952384), (8, 38720240), (10, 30976192), (13, 23827840), (16, 19360120), (20, 15488096), (26, 11913920), (31, 9992320), (32, 9680060), (40, 7744048), (52, 5956960), (62, 4996160), (64, 4840030), (65, 4765568), (80, 3872024), (104, 2978480), (124, 2498080), (128, 2420015), (130, 2382784), (155, 1998464), (160, 1936012), (208, 1489240), (248, 1249040), (260, 1191392), (310, 999232), (320, 968006), (403, 768640), (416, 744620), (496, 624520), (520, 595696), (620, 499616), (640, 484003), (806, 384320), (832, 372310), (992, 312260), (1040, 297848), (1201, 257920), (1240, 249808), (1612, 192160), (1664, 186155), (1984, 156130), (2015, 153728), (2080, 148924), (2402, 128960), (2480, 124904), (3224, 96080), (3968, 78065), (4030, 76864), (4160, 74462), (4804, 64480), (4960, 62452), (6005, 51584), (6448, 48040), (8060, 38432), (8320, 37231), (9608, 32240), (9920, 31226), (12010, 25792), (12896, 24020), (15613, 19840), (16120, 19216)]