90817520

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:414

約数の個数: 80

約数和(自身を含む): 218557440

約数和(自身を除く): 127739920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 71, 80, 118, 142, 236, 271, 284, 295, 355, 472, 542, 568, 590, 710, 944, 1084, 1136, 1180, 1355, 1420, 2168, 2360, 2710, 2840, 4189, 4336, 4720, 5420, 5680, 8378, 10840, 15989, 16756, 19241, 20945, 21680, 31978, 33512, 38482, 41890, 63956, 67024, 76964, 79945, 83780, 96205, 127912, 153928, 159890, 167560, 192410, 255824, 307856, 319780, 335120, 384820, 639560, 769640, 1135219, 1279120, 1539280, 2270438, 4540876, 5676095, 9081752, 11352190, 18163504, 22704380, 45408760, 90817520]

約数ペア:

[(1, 90817520), (2, 45408760), (4, 22704380), (5, 18163504), (8, 11352190), (10, 9081752), (16, 5676095), (20, 4540876), (40, 2270438), (59, 1539280), (71, 1279120), (80, 1135219), (118, 769640), (142, 639560), (236, 384820), (271, 335120), (284, 319780), (295, 307856), (355, 255824), (472, 192410), (542, 167560), (568, 159890), (590, 153928), (710, 127912), (944, 96205), (1084, 83780), (1136, 79945), (1180, 76964), (1355, 67024), (1420, 63956), (2168, 41890), (2360, 38482), (2710, 33512), (2840, 31978), (4189, 21680), (4336, 20945), (4720, 19241), (5420, 16756), (5680, 15989), (8378, 10840)]