19984448520

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{973901}}^1$

素因数の和:973940

約数の個数: 128

約数和(自身を含む): 70120944000

約数和(自身を除く): 50136495480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 152, 171, 180, 190, 216, 228, 270, 285, 342, 360, 380, 456, 513, 540, 570, 684, 760, 855, 1026, 1080, 1140, 1368, 1710, 2052, 2280, 2565, 3420, 4104, 5130, 6840, 10260, 20520, 973901, 1947802, 2921703, 3895604, 4869505, 5843406, 7791208, 8765109, 9739010, 11686812, 14608515, 17530218, 18504119, 19478020, 23373624, 26295327, 29217030, 35060436, 37008238, 38956040, 43825545, 52590654, 55512357, 58434060, 70120872, 74016476, 87651090, 92520595, 105181308, 111024714, 116868120, 131476635, 148032952, 166537071, 175302180, 185041190, 210362616, 222049428, 262953270, 277561785, 333074142, 350604360, 370082380, 444098856, 499611213, 525906540, 555123570, 666148284, 740164760, 832685355, 999222426, 1051813080, 1110247140, 1332296568, 1665370710, 1998444852, 2220494280, 2498056065, 3330741420, 3996889704, 4996112130, 6661482840, 9992224260, 19984448520]

約数ペア:

[(1, 19984448520), (2, 9992224260), (3, 6661482840), (4, 4996112130), (5, 3996889704), (6, 3330741420), (8, 2498056065), (9, 2220494280), (10, 1998444852), (12, 1665370710), (15, 1332296568), (18, 1110247140), (19, 1051813080), (20, 999222426), (24, 832685355), (27, 740164760), (30, 666148284), (36, 555123570), (38, 525906540), (40, 499611213), (45, 444098856), (54, 370082380), (57, 350604360), (60, 333074142), (72, 277561785), (76, 262953270), (90, 222049428), (95, 210362616), (108, 185041190), (114, 175302180), (120, 166537071), (135, 148032952), (152, 131476635), (171, 116868120), (180, 111024714), (190, 105181308), (216, 92520595), (228, 87651090), (270, 74016476), (285, 70120872), (342, 58434060), (360, 55512357), (380, 52590654), (456, 43825545), (513, 38956040), (540, 37008238), (570, 35060436), (684, 29217030), (760, 26295327), (855, 23373624), (1026, 19478020), (1080, 18504119), (1140, 17530218), (1368, 14608515), (1710, 11686812), (2052, 9739010), (2280, 8765109), (2565, 7791208), (3420, 5843406), (4104, 4869505), (5130, 3895604), (6840, 2921703), (10260, 1947802), (20520, 973901)]