20664248

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{727}}^1$

素因数の和:780

約数の個数: 64

約数和(自身を含む): 47174400

約数和(自身を除く): 26510152

約数列:

[1, 2, 4, 8, 11, 17, 19, 22, 34, 38, 44, 68, 76, 88, 136, 152, 187, 209, 323, 374, 418, 646, 727, 748, 836, 1292, 1454, 1496, 1672, 2584, 2908, 3553, 5816, 7106, 7997, 12359, 13813, 14212, 15994, 24718, 27626, 28424, 31988, 49436, 55252, 63976, 98872, 110504, 135949, 151943, 234821, 271898, 303886, 469642, 543796, 607772, 939284, 1087592, 1215544, 1878568, 2583031, 5166062, 10332124, 20664248]

約数ペア:

[(1, 20664248), (2, 10332124), (4, 5166062), (8, 2583031), (11, 1878568), (17, 1215544), (19, 1087592), (22, 939284), (34, 607772), (38, 543796), (44, 469642), (68, 303886), (76, 271898), (88, 234821), (136, 151943), (152, 135949), (187, 110504), (209, 98872), (323, 63976), (374, 55252), (418, 49436), (646, 31988), (727, 28424), (748, 27626), (836, 24718), (1292, 15994), (1454, 14212), (1496, 13813), (1672, 12359), (2584, 7997), (2908, 7106), (3553, 5816)]