28474660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{941}}^1$

素因数の和:1056

約数の個数: 48

約数和(自身を含む): 64093680

約数和(自身を除く): 35619020

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 89, 170, 178, 340, 356, 445, 890, 941, 1513, 1780, 1882, 3026, 3764, 4705, 6052, 7565, 9410, 15130, 15997, 18820, 30260, 31994, 63988, 79985, 83749, 159970, 167498, 319940, 334996, 418745, 837490, 1423733, 1674980, 2847466, 5694932, 7118665, 14237330, 28474660]

約数ペア:

[(1, 28474660), (2, 14237330), (4, 7118665), (5, 5694932), (10, 2847466), (17, 1674980), (20, 1423733), (34, 837490), (68, 418745), (85, 334996), (89, 319940), (170, 167498), (178, 159970), (340, 83749), (356, 79985), (445, 63988), (890, 31994), (941, 30260), (1513, 18820), (1780, 15997), (1882, 15130), (3026, 9410), (3764, 7565), (4705, 6052)]