165255220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{1601}}^1$

素因数の和:2020

約数の個数: 48

約数和(自身を含む): 374906448

約数和(自身を除く): 209651228

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 397, 794, 1588, 1601, 1985, 3202, 3970, 5161, 6404, 7940, 8005, 10322, 16010, 20644, 20813, 25805, 32020, 41626, 51610, 83252, 103220, 104065, 208130, 416260, 635597, 1271194, 2542388, 3177985, 6355970, 8262761, 12711940, 16525522, 33051044, 41313805, 82627610, 165255220]

約数ペア:

[(1, 165255220), (2, 82627610), (4, 41313805), (5, 33051044), (10, 16525522), (13, 12711940), (20, 8262761), (26, 6355970), (52, 3177985), (65, 2542388), (130, 1271194), (260, 635597), (397, 416260), (794, 208130), (1588, 104065), (1601, 103220), (1985, 83252), (3202, 51610), (3970, 41626), (5161, 32020), (6404, 25805), (7940, 20813), (8005, 20644), (10322, 16010)]