20298301912

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1\times {\mathrm{21323}}^1$

素因数の和:21616

約数の個数: 64

約数和(自身を含む): 44217446400

約数和(自身を除く): 23919144488

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 191, 356, 382, 623, 712, 764, 1246, 1337, 1528, 2492, 2674, 4984, 5348, 10696, 16999, 21323, 33998, 42646, 67996, 85292, 118993, 135992, 149261, 170584, 237986, 298522, 475972, 597044, 951944, 1194088, 1897747, 3795494, 4072693, 7590988, 8145386, 13284229, 15181976, 16290772, 26568458, 28508851, 32581544, 53136916, 57017702, 106273832, 114035404, 228070808, 362469677, 724939354, 1449878708, 2537287739, 2899757416, 5074575478, 10149150956, 20298301912]

約数ペア:

[(1, 20298301912), (2, 10149150956), (4, 5074575478), (7, 2899757416), (8, 2537287739), (14, 1449878708), (28, 724939354), (56, 362469677), (89, 228070808), (178, 114035404), (191, 106273832), (356, 57017702), (382, 53136916), (623, 32581544), (712, 28508851), (764, 26568458), (1246, 16290772), (1337, 15181976), (1528, 13284229), (2492, 8145386), (2674, 7590988), (4984, 4072693), (5348, 3795494), (10696, 1897747), (16999, 1194088), (21323, 951944), (33998, 597044), (42646, 475972), (67996, 298522), (85292, 237986), (118993, 170584), (135992, 149261)]