178220120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:277

約数の個数: 128

約数和(自身を含む): 453902400

約数和(自身を除く): 275682280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 59, 65, 74, 104, 118, 130, 148, 157, 185, 236, 260, 295, 296, 314, 370, 472, 481, 520, 590, 628, 740, 767, 785, 962, 1180, 1256, 1480, 1534, 1570, 1924, 2041, 2183, 2360, 2405, 3068, 3140, 3835, 3848, 4082, 4366, 4810, 5809, 6136, 6280, 7670, 8164, 8732, 9263, 9620, 10205, 10915, 11618, 15340, 16328, 17464, 18526, 19240, 20410, 21830, 23236, 28379, 29045, 30680, 37052, 40820, 43660, 46315, 46472, 56758, 58090, 74104, 75517, 81640, 87320, 92630, 113516, 116180, 120419, 141895, 151034, 185260, 227032, 232360, 240838, 283790, 302068, 342731, 370520, 377585, 481676, 567580, 602095, 604136, 685462, 755170, 963352, 1135160, 1204190, 1370924, 1510340, 1713655, 2408380, 2741848, 3020680, 3427310, 4455503, 4816760, 6854620, 8911006, 13709240, 17822012, 22277515, 35644024, 44555030, 89110060, 178220120]

約数ペア:

[(1, 178220120), (2, 89110060), (4, 44555030), (5, 35644024), (8, 22277515), (10, 17822012), (13, 13709240), (20, 8911006), (26, 6854620), (37, 4816760), (40, 4455503), (52, 3427310), (59, 3020680), (65, 2741848), (74, 2408380), (104, 1713655), (118, 1510340), (130, 1370924), (148, 1204190), (157, 1135160), (185, 963352), (236, 755170), (260, 685462), (295, 604136), (296, 602095), (314, 567580), (370, 481676), (472, 377585), (481, 370520), (520, 342731), (590, 302068), (628, 283790), (740, 240838), (767, 232360), (785, 227032), (962, 185260), (1180, 151034), (1256, 141895), (1480, 120419), (1534, 116180), (1570, 113516), (1924, 92630), (2041, 87320), (2183, 81640), (2360, 75517), (2405, 74104), (3068, 58090), (3140, 56758), (3835, 46472), (3848, 46315), (4082, 43660), (4366, 40820), (4810, 37052), (5809, 30680), (6136, 29045), (6280, 28379), (7670, 23236), (8164, 21830), (8732, 20410), (9263, 19240), (9620, 18526), (10205, 17464), (10915, 16328), (11618, 15340)]