81315120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{14731}}^1$

素因数の和:14770

約数の個数: 80

約数和(自身を含む): 263054592

約数和(自身を除く): 181739472

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 5520, 14731, 29462, 44193, 58924, 73655, 88386, 117848, 147310, 176772, 220965, 235696, 294620, 338813, 353544, 441930, 589240, 677626, 707088, 883860, 1016439, 1178480, 1355252, 1694065, 1767720, 2032878, 2710504, 3388130, 3535440, 4065756, 5082195, 5421008, 6776260, 8131512, 10164390, 13552520, 16263024, 20328780, 27105040, 40657560, 81315120]

約数ペア:

[(1, 81315120), (2, 40657560), (3, 27105040), (4, 20328780), (5, 16263024), (6, 13552520), (8, 10164390), (10, 8131512), (12, 6776260), (15, 5421008), (16, 5082195), (20, 4065756), (23, 3535440), (24, 3388130), (30, 2710504), (40, 2032878), (46, 1767720), (48, 1694065), (60, 1355252), (69, 1178480), (80, 1016439), (92, 883860), (115, 707088), (120, 677626), (138, 589240), (184, 441930), (230, 353544), (240, 338813), (276, 294620), (345, 235696), (368, 220965), (460, 176772), (552, 147310), (690, 117848), (920, 88386), (1104, 73655), (1380, 58924), (1840, 44193), (2760, 29462), (5520, 14731)]