20615084

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{269}}^1$

素因数の和:327

約数の個数: 72

約数和(自身を含む): 46539360

約数和(自身を除く): 25924276

約数列:

[1, 2, 4, 7, 14, 17, 23, 28, 34, 46, 49, 68, 92, 98, 119, 161, 196, 238, 269, 322, 391, 476, 538, 644, 782, 833, 1076, 1127, 1564, 1666, 1883, 2254, 2737, 3332, 3766, 4508, 4573, 5474, 6187, 7532, 9146, 10948, 12374, 13181, 18292, 19159, 24748, 26362, 32011, 38318, 43309, 52724, 64022, 76636, 86618, 105179, 128044, 173236, 210358, 224077, 303163, 420716, 448154, 606326, 736253, 896308, 1212652, 1472506, 2945012, 5153771, 10307542, 20615084]

約数ペア:

[(1, 20615084), (2, 10307542), (4, 5153771), (7, 2945012), (14, 1472506), (17, 1212652), (23, 896308), (28, 736253), (34, 606326), (46, 448154), (49, 420716), (68, 303163), (92, 224077), (98, 210358), (119, 173236), (161, 128044), (196, 105179), (238, 86618), (269, 76636), (322, 64022), (391, 52724), (476, 43309), (538, 38318), (644, 32011), (782, 26362), (833, 24748), (1076, 19159), (1127, 18292), (1564, 13181), (1666, 12374), (1883, 10948), (2254, 9146), (2737, 7532), (3332, 6187), (3766, 5474), (4508, 4573)]