19620197120

素因数分解:

$2^8\times 5^1\times {\mathrm{331}}^1\times {\mathrm{46309}}^1$

素因数の和:46661

約数の個数: 72

約数和(自身を含む): 47139504720

約数和(自身を除く): 27519307600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 331, 640, 662, 1280, 1324, 1655, 2648, 3310, 5296, 6620, 10592, 13240, 21184, 26480, 42368, 46309, 52960, 84736, 92618, 105920, 185236, 211840, 231545, 370472, 423680, 463090, 740944, 926180, 1481888, 1852360, 2963776, 3704720, 5927552, 7409440, 11855104, 14818880, 15328279, 29637760, 30656558, 59275520, 61313116, 76641395, 122626232, 153282790, 245252464, 306565580, 490504928, 613131160, 981009856, 1226262320, 1962019712, 2452524640, 3924039424, 4905049280, 9810098560, 19620197120]

約数ペア:

[(1, 19620197120), (2, 9810098560), (4, 4905049280), (5, 3924039424), (8, 2452524640), (10, 1962019712), (16, 1226262320), (20, 981009856), (32, 613131160), (40, 490504928), (64, 306565580), (80, 245252464), (128, 153282790), (160, 122626232), (256, 76641395), (320, 61313116), (331, 59275520), (640, 30656558), (662, 29637760), (1280, 15328279), (1324, 14818880), (1655, 11855104), (2648, 7409440), (3310, 5927552), (5296, 3704720), (6620, 2963776), (10592, 1852360), (13240, 1481888), (21184, 926180), (26480, 740944), (42368, 463090), (46309, 423680), (52960, 370472), (84736, 231545), (92618, 211840), (105920, 185236)]