2077660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 4812192

約数和(自身を除く): 2734532

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 131, 244, 260, 262, 305, 524, 610, 655, 793, 1220, 1310, 1586, 1703, 2620, 3172, 3406, 3965, 6812, 7930, 7991, 8515, 15860, 15982, 17030, 31964, 34060, 39955, 79910, 103883, 159820, 207766, 415532, 519415, 1038830, 2077660]

約数ペア:

[(1, 2077660), (2, 1038830), (4, 519415), (5, 415532), (10, 207766), (13, 159820), (20, 103883), (26, 79910), (52, 39955), (61, 34060), (65, 31964), (122, 17030), (130, 15982), (131, 15860), (244, 8515), (260, 7991), (262, 7930), (305, 6812), (524, 3965), (610, 3406), (655, 3172), (793, 2620), (1220, 1703), (1310, 1586)]