98774980

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1\times {\mathrm{379}}^1$

素因数の和:628

約数の個数: 48

約数和(自身を含む): 211821120

約数和(自身を除く): 113046140

約数列:

[1, 2, 4, 5, 10, 20, 83, 157, 166, 314, 332, 379, 415, 628, 758, 785, 830, 1516, 1570, 1660, 1895, 3140, 3790, 7580, 13031, 26062, 31457, 52124, 59503, 62914, 65155, 119006, 125828, 130310, 157285, 238012, 260620, 297515, 314570, 595030, 629140, 1190060, 4938749, 9877498, 19754996, 24693745, 49387490, 98774980]

約数ペア:

[(1, 98774980), (2, 49387490), (4, 24693745), (5, 19754996), (10, 9877498), (20, 4938749), (83, 1190060), (157, 629140), (166, 595030), (314, 314570), (332, 297515), (379, 260620), (415, 238012), (628, 157285), (758, 130310), (785, 125828), (830, 119006), (1516, 65155), (1570, 62914), (1660, 59503), (1895, 52124), (3140, 31457), (3790, 26062), (7580, 13031)]