1389657400

素因数分解:

$2^3\times 5^2\times {\mathrm{79}}^1\times {\mathrm{281}}^1\times {\mathrm{313}}^1$

素因数の和:689

約数の個数: 96

約数和(自身を含む): 3293985600

約数和(自身を除く): 1904328200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 158, 200, 281, 313, 316, 395, 562, 626, 632, 790, 1124, 1252, 1405, 1565, 1580, 1975, 2248, 2504, 2810, 3130, 3160, 3950, 5620, 6260, 7025, 7825, 7900, 11240, 12520, 14050, 15650, 15800, 22199, 24727, 28100, 31300, 44398, 49454, 56200, 62600, 87953, 88796, 98908, 110995, 123635, 175906, 177592, 197816, 221990, 247270, 351812, 439765, 443980, 494540, 554975, 618175, 703624, 879530, 887960, 989080, 1109950, 1236350, 1759060, 2198825, 2219900, 2472700, 3518120, 4397650, 4439800, 4945400, 6948287, 8795300, 13896574, 17590600, 27793148, 34741435, 55586296, 69482870, 138965740, 173707175, 277931480, 347414350, 694828700, 1389657400]

約数ペア:

[(1, 1389657400), (2, 694828700), (4, 347414350), (5, 277931480), (8, 173707175), (10, 138965740), (20, 69482870), (25, 55586296), (40, 34741435), (50, 27793148), (79, 17590600), (100, 13896574), (158, 8795300), (200, 6948287), (281, 4945400), (313, 4439800), (316, 4397650), (395, 3518120), (562, 2472700), (626, 2219900), (632, 2198825), (790, 1759060), (1124, 1236350), (1252, 1109950), (1405, 989080), (1565, 887960), (1580, 879530), (1975, 703624), (2248, 618175), (2504, 554975), (2810, 494540), (3130, 443980), (3160, 439765), (3950, 351812), (5620, 247270), (6260, 221990), (7025, 197816), (7825, 177592), (7900, 175906), (11240, 123635), (12520, 110995), (14050, 98908), (15650, 88796), (15800, 87953), (22199, 62600), (24727, 56200), (28100, 49454), (31300, 44398)]