20005901120

素因数分解:

$2^6\times 5^1\times {\mathrm{73}}^1\times {\mathrm{856417}}^1$

素因数の和:856507

約数の個数: 56

約数和(自身を含む): 48291698184

約数和(自身を除く): 28285797064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 146, 160, 292, 320, 365, 584, 730, 1168, 1460, 2336, 2920, 4672, 5840, 11680, 23360, 856417, 1712834, 3425668, 4282085, 6851336, 8564170, 13702672, 17128340, 27405344, 34256680, 54810688, 62518441, 68513360, 125036882, 137026720, 250073764, 274053440, 312592205, 500147528, 625184410, 1000295056, 1250368820, 2000590112, 2500737640, 4001180224, 5001475280, 10002950560, 20005901120]

約数ペア:

[(1, 20005901120), (2, 10002950560), (4, 5001475280), (5, 4001180224), (8, 2500737640), (10, 2000590112), (16, 1250368820), (20, 1000295056), (32, 625184410), (40, 500147528), (64, 312592205), (73, 274053440), (80, 250073764), (146, 137026720), (160, 125036882), (292, 68513360), (320, 62518441), (365, 54810688), (584, 34256680), (730, 27405344), (1168, 17128340), (1460, 13702672), (2336, 8564170), (2920, 6851336), (4672, 4282085), (5840, 3425668), (11680, 1712834), (23360, 856417)]