263860220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1723}}^1$

素因数の和:1795

約数の個数: 96

約数和(自身を含む): 648775680

約数和(自身を除く): 384915460

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 31, 38, 52, 62, 65, 76, 95, 124, 130, 155, 190, 247, 260, 310, 380, 403, 494, 589, 620, 806, 988, 1178, 1235, 1612, 1723, 2015, 2356, 2470, 2945, 3446, 4030, 4940, 5890, 6892, 7657, 8060, 8615, 11780, 15314, 17230, 22399, 30628, 32737, 34460, 38285, 44798, 53413, 65474, 76570, 89596, 106826, 111995, 130948, 153140, 163685, 213652, 223990, 267065, 327370, 425581, 447980, 534130, 654740, 694369, 851162, 1014847, 1068260, 1388738, 1702324, 2029694, 2127905, 2777476, 3471845, 4059388, 4255810, 5074235, 6943690, 8511620, 10148470, 13193011, 13887380, 20296940, 26386022, 52772044, 65965055, 131930110, 263860220]

約数ペア:

[(1, 263860220), (2, 131930110), (4, 65965055), (5, 52772044), (10, 26386022), (13, 20296940), (19, 13887380), (20, 13193011), (26, 10148470), (31, 8511620), (38, 6943690), (52, 5074235), (62, 4255810), (65, 4059388), (76, 3471845), (95, 2777476), (124, 2127905), (130, 2029694), (155, 1702324), (190, 1388738), (247, 1068260), (260, 1014847), (310, 851162), (380, 694369), (403, 654740), (494, 534130), (589, 447980), (620, 425581), (806, 327370), (988, 267065), (1178, 223990), (1235, 213652), (1612, 163685), (1723, 153140), (2015, 130948), (2356, 111995), (2470, 106826), (2945, 89596), (3446, 76570), (4030, 65474), (4940, 53413), (5890, 44798), (6892, 38285), (7657, 34460), (8060, 32737), (8615, 30628), (11780, 22399), (15314, 17230)]