2013018020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{86993}}^1$

素因数の和:87104

約数の個数: 48

約数和(自身を含む): 4603722480

約数和(自身を除く): 2590704460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 890, 1157, 1780, 2314, 4628, 5785, 11570, 23140, 86993, 173986, 347972, 434965, 869930, 1130909, 1739860, 2261818, 4523636, 5654545, 7742377, 11309090, 15484754, 22618180, 30969508, 38711885, 77423770, 100650901, 154847540, 201301802, 402603604, 503254505, 1006509010, 2013018020]

約数ペア:

[(1, 2013018020), (2, 1006509010), (4, 503254505), (5, 402603604), (10, 201301802), (13, 154847540), (20, 100650901), (26, 77423770), (52, 38711885), (65, 30969508), (89, 22618180), (130, 15484754), (178, 11309090), (260, 7742377), (356, 5654545), (445, 4523636), (890, 2261818), (1157, 1739860), (1780, 1130909), (2314, 869930), (4628, 434965), (5785, 347972), (11570, 173986), (23140, 86993)]