20120726020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{999043}}^1$

素因数の和:999124

約数の個数: 48

約数和(自身を含む): 45316635840

約数和(自身を除く): 25195909820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 76, 95, 106, 190, 212, 265, 380, 530, 1007, 1060, 2014, 4028, 5035, 10070, 20140, 999043, 1998086, 3996172, 4995215, 9990430, 18981817, 19980860, 37963634, 52949279, 75927268, 94909085, 105898558, 189818170, 211797116, 264746395, 379636340, 529492790, 1006036301, 1058985580, 2012072602, 4024145204, 5030181505, 10060363010, 20120726020]

約数ペア:

[(1, 20120726020), (2, 10060363010), (4, 5030181505), (5, 4024145204), (10, 2012072602), (19, 1058985580), (20, 1006036301), (38, 529492790), (53, 379636340), (76, 264746395), (95, 211797116), (106, 189818170), (190, 105898558), (212, 94909085), (265, 75927268), (380, 52949279), (530, 37963634), (1007, 19980860), (1060, 18981817), (2014, 9990430), (4028, 4995215), (5035, 3996172), (10070, 1998086), (20140, 999043)]