27759940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:269

約数の個数: 72

約数和(自身を含む): 64931328

約数和(自身を除く): 37171388

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 169, 172, 191, 215, 260, 338, 382, 430, 559, 676, 764, 845, 860, 955, 1118, 1690, 1910, 2236, 2483, 2795, 3380, 3820, 4966, 5590, 7267, 8213, 9932, 11180, 12415, 14534, 16426, 24830, 29068, 32279, 32852, 36335, 41065, 49660, 64558, 72670, 82130, 106769, 129116, 145340, 161395, 164260, 213538, 322790, 427076, 533845, 645580, 1067690, 1387997, 2135380, 2775994, 5551988, 6939985, 13879970, 27759940]

約数ペア:

[(1, 27759940), (2, 13879970), (4, 6939985), (5, 5551988), (10, 2775994), (13, 2135380), (20, 1387997), (26, 1067690), (43, 645580), (52, 533845), (65, 427076), (86, 322790), (130, 213538), (169, 164260), (172, 161395), (191, 145340), (215, 129116), (260, 106769), (338, 82130), (382, 72670), (430, 64558), (559, 49660), (676, 41065), (764, 36335), (845, 32852), (860, 32279), (955, 29068), (1118, 24830), (1690, 16426), (1910, 14534), (2236, 12415), (2483, 11180), (2795, 9932), (3380, 8213), (3820, 7267), (4966, 5590)]