20912149680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{397}}^1\times {\mathrm{1579}}^1$

素因数の和:2131

約数の個数: 160

約数和(自身を含む): 65499974400

約数和(自身を除く): 44587824720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 139, 240, 278, 397, 417, 556, 695, 794, 834, 1112, 1191, 1390, 1579, 1588, 1668, 1985, 2085, 2224, 2382, 2780, 3158, 3176, 3336, 3970, 4170, 4737, 4764, 5560, 5955, 6316, 6352, 6672, 7895, 7940, 8340, 9474, 9528, 11120, 11910, 12632, 15790, 15880, 16680, 18948, 19056, 23685, 23820, 25264, 31580, 31760, 33360, 37896, 47370, 47640, 55183, 63160, 75792, 94740, 95280, 110366, 126320, 165549, 189480, 219481, 220732, 275915, 331098, 378960, 438962, 441464, 551830, 626863, 658443, 662196, 827745, 877924, 882928, 1097405, 1103660, 1253726, 1316886, 1324392, 1655490, 1755848, 1880589, 2194810, 2207320, 2507452, 2633772, 2648784, 3134315, 3292215, 3310980, 3511696, 3761178, 4389620, 4414640, 5014904, 5267544, 6268630, 6584430, 6621960, 7522356, 8779240, 9402945, 10029808, 10535088, 12537260, 13168860, 13243920, 15044712, 17558480, 18805890, 25074520, 26337720, 30089424, 37611780, 50149040, 52675440, 75223560, 87133957, 150447120, 174267914, 261401871, 348535828, 435669785, 522803742, 697071656, 871339570, 1045607484, 1307009355, 1394143312, 1742679140, 2091214968, 2614018710, 3485358280, 4182429936, 5228037420, 6970716560, 10456074840, 20912149680]

約数ペア:

[(1, 20912149680), (2, 10456074840), (3, 6970716560), (4, 5228037420), (5, 4182429936), (6, 3485358280), (8, 2614018710), (10, 2091214968), (12, 1742679140), (15, 1394143312), (16, 1307009355), (20, 1045607484), (24, 871339570), (30, 697071656), (40, 522803742), (48, 435669785), (60, 348535828), (80, 261401871), (120, 174267914), (139, 150447120), (240, 87133957), (278, 75223560), (397, 52675440), (417, 50149040), (556, 37611780), (695, 30089424), (794, 26337720), (834, 25074520), (1112, 18805890), (1191, 17558480), (1390, 15044712), (1579, 13243920), (1588, 13168860), (1668, 12537260), (1985, 10535088), (2085, 10029808), (2224, 9402945), (2382, 8779240), (2780, 7522356), (3158, 6621960), (3176, 6584430), (3336, 6268630), (3970, 5267544), (4170, 5014904), (4737, 4414640), (4764, 4389620), (5560, 3761178), (5955, 3511696), (6316, 3310980), (6352, 3292215), (6672, 3134315), (7895, 2648784), (7940, 2633772), (8340, 2507452), (9474, 2207320), (9528, 2194810), (11120, 1880589), (11910, 1755848), (12632, 1655490), (15790, 1324392), (15880, 1316886), (16680, 1253726), (18948, 1103660), (19056, 1097405), (23685, 882928), (23820, 877924), (25264, 827745), (31580, 662196), (31760, 658443), (33360, 626863), (37896, 551830), (47370, 441464), (47640, 438962), (55183, 378960), (63160, 331098), (75792, 275915), (94740, 220732), (95280, 219481), (110366, 189480), (126320, 165549)]