19996930

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 41368320

約数和(自身を除く): 21371390

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 41, 82, 85, 95, 151, 170, 190, 205, 302, 323, 410, 646, 697, 755, 779, 1394, 1510, 1558, 1615, 2567, 2869, 3230, 3485, 3895, 5134, 5738, 6191, 6970, 7790, 12382, 12835, 13243, 14345, 25670, 26486, 28690, 30955, 48773, 61910, 66215, 97546, 105247, 117629, 132430, 210494, 235258, 243865, 487730, 526235, 588145, 1052470, 1176290, 1999693, 3999386, 9998465, 19996930]

約数ペア:

[(1, 19996930), (2, 9998465), (5, 3999386), (10, 1999693), (17, 1176290), (19, 1052470), (34, 588145), (38, 526235), (41, 487730), (82, 243865), (85, 235258), (95, 210494), (151, 132430), (170, 117629), (190, 105247), (205, 97546), (302, 66215), (323, 61910), (410, 48773), (646, 30955), (697, 28690), (755, 26486), (779, 25670), (1394, 14345), (1510, 13243), (1558, 12835), (1615, 12382), (2567, 7790), (2869, 6970), (3230, 6191), (3485, 5738), (3895, 5134)]