16027940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:149

約数の個数: 72

約数和(自身を含む): 37134720

約数和(自身を除く): 21106780

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 59, 68, 85, 94, 118, 170, 188, 235, 236, 289, 295, 340, 470, 578, 590, 799, 940, 1003, 1156, 1180, 1445, 1598, 2006, 2773, 2890, 3196, 3995, 4012, 5015, 5546, 5780, 7990, 10030, 11092, 13583, 13865, 15980, 17051, 20060, 27166, 27730, 34102, 47141, 54332, 55460, 67915, 68204, 85255, 94282, 135830, 170510, 188564, 235705, 271660, 341020, 471410, 801397, 942820, 1602794, 3205588, 4006985, 8013970, 16027940]

約数ペア:

[(1, 16027940), (2, 8013970), (4, 4006985), (5, 3205588), (10, 1602794), (17, 942820), (20, 801397), (34, 471410), (47, 341020), (59, 271660), (68, 235705), (85, 188564), (94, 170510), (118, 135830), (170, 94282), (188, 85255), (235, 68204), (236, 67915), (289, 55460), (295, 54332), (340, 47141), (470, 34102), (578, 27730), (590, 27166), (799, 20060), (940, 17051), (1003, 15980), (1156, 13865), (1180, 13583), (1445, 11092), (1598, 10030), (2006, 7990), (2773, 5780), (2890, 5546), (3196, 5015), (3995, 4012)]