81206020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{5743}}^1$

素因数の和:5860

約数の個数: 48

約数和(自身を含む): 196858368

約数和(自身を除く): 115652348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1414, 2020, 2828, 3535, 5743, 7070, 11486, 14140, 22972, 28715, 40201, 57430, 80402, 114860, 160804, 201005, 402010, 580043, 804020, 1160086, 2320172, 2900215, 4060301, 5800430, 8120602, 11600860, 16241204, 20301505, 40603010, 81206020]

約数ペア:

[(1, 81206020), (2, 40603010), (4, 20301505), (5, 16241204), (7, 11600860), (10, 8120602), (14, 5800430), (20, 4060301), (28, 2900215), (35, 2320172), (70, 1160086), (101, 804020), (140, 580043), (202, 402010), (404, 201005), (505, 160804), (707, 114860), (1010, 80402), (1414, 57430), (2020, 40201), (2828, 28715), (3535, 22972), (5743, 14140), (7070, 11486)]