12728136980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{9631}}^1$

素因数の和:9706

約数の個数: 144

約数和(自身を含む): 31981630464

約数和(自身を除く): 19253493484

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 23, 26, 34, 46, 52, 65, 68, 85, 92, 115, 130, 169, 170, 221, 230, 260, 299, 338, 340, 391, 442, 460, 598, 676, 782, 845, 884, 1105, 1196, 1495, 1564, 1690, 1955, 2210, 2873, 2990, 3380, 3887, 3910, 4420, 5083, 5746, 5980, 7774, 7820, 9631, 10166, 11492, 14365, 15548, 19262, 19435, 20332, 25415, 28730, 38524, 38870, 48155, 50830, 57460, 66079, 77740, 96310, 101660, 125203, 132158, 163727, 192620, 221513, 250406, 264316, 327454, 330395, 443026, 500812, 626015, 654908, 660790, 818635, 886052, 1107565, 1252030, 1321580, 1627639, 1637270, 2128451, 2215130, 2504060, 2879669, 3255278, 3274540, 3765721, 4256902, 4430260, 5759338, 6510556, 7531442, 8138195, 8513804, 10642255, 11518676, 14398345, 15062884, 16276390, 18828605, 21284510, 27669863, 28796690, 32552780, 37435697, 37657210, 42569020, 48954373, 55339726, 57593380, 74871394, 75314420, 97908746, 110679452, 138349315, 149742788, 187178485, 195817492, 244771865, 276698630, 374356970, 489543730, 553397260, 636406849, 748713940, 979087460, 1272813698, 2545627396, 3182034245, 6364068490, 12728136980]

約数ペア:

[(1, 12728136980), (2, 6364068490), (4, 3182034245), (5, 2545627396), (10, 1272813698), (13, 979087460), (17, 748713940), (20, 636406849), (23, 553397260), (26, 489543730), (34, 374356970), (46, 276698630), (52, 244771865), (65, 195817492), (68, 187178485), (85, 149742788), (92, 138349315), (115, 110679452), (130, 97908746), (169, 75314420), (170, 74871394), (221, 57593380), (230, 55339726), (260, 48954373), (299, 42569020), (338, 37657210), (340, 37435697), (391, 32552780), (442, 28796690), (460, 27669863), (598, 21284510), (676, 18828605), (782, 16276390), (845, 15062884), (884, 14398345), (1105, 11518676), (1196, 10642255), (1495, 8513804), (1564, 8138195), (1690, 7531442), (1955, 6510556), (2210, 5759338), (2873, 4430260), (2990, 4256902), (3380, 3765721), (3887, 3274540), (3910, 3255278), (4420, 2879669), (5083, 2504060), (5746, 2215130), (5980, 2128451), (7774, 1637270), (7820, 1627639), (9631, 1321580), (10166, 1252030), (11492, 1107565), (14365, 886052), (15548, 818635), (19262, 660790), (19435, 654908), (20332, 626015), (25415, 500812), (28730, 443026), (38524, 330395), (38870, 327454), (48155, 264316), (50830, 250406), (57460, 221513), (66079, 192620), (77740, 163727), (96310, 132158), (101660, 125203)]