168989860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^2\times {\mathrm{173}}^1$

素因数の和:242

約数の個数: 108

約数和(自身を含む): 410570748

約数和(自身を除く): 241580888

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 169, 170, 173, 221, 260, 289, 338, 340, 346, 442, 578, 676, 692, 845, 865, 884, 1105, 1156, 1445, 1690, 1730, 2210, 2249, 2873, 2890, 2941, 3380, 3460, 3757, 4420, 4498, 5746, 5780, 5882, 7514, 8996, 11245, 11492, 11764, 14365, 14705, 15028, 18785, 22490, 28730, 29237, 29410, 37570, 38233, 44980, 48841, 49997, 57460, 58474, 58820, 75140, 76466, 97682, 99994, 116948, 146185, 152932, 191165, 195364, 199988, 244205, 249985, 292370, 382330, 488410, 497029, 499970, 584740, 649961, 764660, 976820, 994058, 999940, 1299922, 1988116, 2485145, 2599844, 3249805, 4970290, 6499610, 8449493, 9940580, 12999220, 16898986, 33797972, 42247465, 84494930, 168989860]

約数ペア:

[(1, 168989860), (2, 84494930), (4, 42247465), (5, 33797972), (10, 16898986), (13, 12999220), (17, 9940580), (20, 8449493), (26, 6499610), (34, 4970290), (52, 3249805), (65, 2599844), (68, 2485145), (85, 1988116), (130, 1299922), (169, 999940), (170, 994058), (173, 976820), (221, 764660), (260, 649961), (289, 584740), (338, 499970), (340, 497029), (346, 488410), (442, 382330), (578, 292370), (676, 249985), (692, 244205), (845, 199988), (865, 195364), (884, 191165), (1105, 152932), (1156, 146185), (1445, 116948), (1690, 99994), (1730, 97682), (2210, 76466), (2249, 75140), (2873, 58820), (2890, 58474), (2941, 57460), (3380, 49997), (3460, 48841), (3757, 44980), (4420, 38233), (4498, 37570), (5746, 29410), (5780, 29237), (5882, 28730), (7514, 22490), (8996, 18785), (11245, 15028), (11492, 14705), (11764, 14365)]