19958170

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{167}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 41368320

約数和(自身を除く): 21410150

約数列:

[1, 2, 5, 10, 17, 19, 34, 37, 38, 74, 85, 95, 167, 170, 185, 190, 323, 334, 370, 629, 646, 703, 835, 1258, 1406, 1615, 1670, 2839, 3145, 3173, 3230, 3515, 5678, 6179, 6290, 6346, 7030, 11951, 12358, 14195, 15865, 23902, 28390, 30895, 31730, 53941, 59755, 61790, 105043, 107882, 117401, 119510, 210086, 234802, 269705, 525215, 539410, 587005, 1050430, 1174010, 1995817, 3991634, 9979085, 19958170]

約数ペア:

[(1, 19958170), (2, 9979085), (5, 3991634), (10, 1995817), (17, 1174010), (19, 1050430), (34, 587005), (37, 539410), (38, 525215), (74, 269705), (85, 234802), (95, 210086), (167, 119510), (170, 117401), (185, 107882), (190, 105043), (323, 61790), (334, 59755), (370, 53941), (629, 31730), (646, 30895), (703, 28390), (835, 23902), (1258, 15865), (1406, 14195), (1615, 12358), (1670, 11951), (2839, 7030), (3145, 6346), (3173, 6290), (3230, 6179), (3515, 5678)]