12804907120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1\times {\mathrm{821}}^1$

素因数の和:1215

約数の個数: 160

約数和(自身を含む): 32486492160

約数和(自身を除く): 19681585040

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 331, 380, 496, 589, 620, 662, 760, 821, 1178, 1240, 1324, 1520, 1642, 1655, 2356, 2480, 2648, 2945, 3284, 3310, 4105, 4712, 5296, 5890, 6289, 6568, 6620, 8210, 9424, 10261, 11780, 12578, 13136, 13240, 15599, 16420, 20522, 23560, 25156, 25451, 26480, 31198, 31445, 32840, 41044, 47120, 50312, 50902, 51305, 62396, 62890, 65680, 77995, 82088, 100624, 101804, 102610, 124792, 125780, 127255, 155990, 164176, 194959, 203608, 205220, 249584, 251560, 254510, 271751, 311980, 389918, 407216, 410440, 483569, 503120, 509020, 543502, 623960, 779836, 820880, 967138, 974795, 1018040, 1087004, 1247920, 1358755, 1559672, 1934276, 1949590, 2036080, 2174008, 2417845, 2717510, 3119344, 3868552, 3899180, 4348016, 4835690, 5163269, 5435020, 7737104, 7798360, 8424281, 9671380, 10326538, 10870040, 15596720, 16848562, 19342760, 20653076, 21740080, 25816345, 33697124, 38685520, 41306152, 42121405, 51632690, 67394248, 82612304, 84242810, 103265380, 134788496, 160061339, 168485620, 206530760, 320122678, 336971240, 413061520, 640245356, 673942480, 800306695, 1280490712, 1600613390, 2560981424, 3201226780, 6402453560, 12804907120]

約数ペア:

[(1, 12804907120), (2, 6402453560), (4, 3201226780), (5, 2560981424), (8, 1600613390), (10, 1280490712), (16, 800306695), (19, 673942480), (20, 640245356), (31, 413061520), (38, 336971240), (40, 320122678), (62, 206530760), (76, 168485620), (80, 160061339), (95, 134788496), (124, 103265380), (152, 84242810), (155, 82612304), (190, 67394248), (248, 51632690), (304, 42121405), (310, 41306152), (331, 38685520), (380, 33697124), (496, 25816345), (589, 21740080), (620, 20653076), (662, 19342760), (760, 16848562), (821, 15596720), (1178, 10870040), (1240, 10326538), (1324, 9671380), (1520, 8424281), (1642, 7798360), (1655, 7737104), (2356, 5435020), (2480, 5163269), (2648, 4835690), (2945, 4348016), (3284, 3899180), (3310, 3868552), (4105, 3119344), (4712, 2717510), (5296, 2417845), (5890, 2174008), (6289, 2036080), (6568, 1949590), (6620, 1934276), (8210, 1559672), (9424, 1358755), (10261, 1247920), (11780, 1087004), (12578, 1018040), (13136, 974795), (13240, 967138), (15599, 820880), (16420, 779836), (20522, 623960), (23560, 543502), (25156, 509020), (25451, 503120), (26480, 483569), (31198, 410440), (31445, 407216), (32840, 389918), (41044, 311980), (47120, 271751), (50312, 254510), (50902, 251560), (51305, 249584), (62396, 205220), (62890, 203608), (65680, 194959), (77995, 164176), (82088, 155990), (100624, 127255), (101804, 125780), (102610, 124792)]