80913460

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{347}}^1$

素因数の和:576

約数の個数: 48

約数和(自身を含む): 173638080

約数和(自身を除く): 92724620

約数列:

[1, 2, 4, 5, 10, 20, 89, 131, 178, 262, 347, 356, 445, 524, 655, 694, 890, 1310, 1388, 1735, 1780, 2620, 3470, 6940, 11659, 23318, 30883, 45457, 46636, 58295, 61766, 90914, 116590, 123532, 154415, 181828, 227285, 233180, 308830, 454570, 617660, 909140, 4045673, 8091346, 16182692, 20228365, 40456730, 80913460]

約数ペア:

[(1, 80913460), (2, 40456730), (4, 20228365), (5, 16182692), (10, 8091346), (20, 4045673), (89, 909140), (131, 617660), (178, 454570), (262, 308830), (347, 233180), (356, 227285), (445, 181828), (524, 154415), (655, 123532), (694, 116590), (890, 90914), (1310, 61766), (1388, 58295), (1735, 46636), (1780, 45457), (2620, 30883), (3470, 23318), (6940, 11659)]