69456800

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:263

約数の個数: 144

約数和(自身を含む): 197487360

約数和(自身を除く): 128030560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 70, 79, 80, 100, 112, 140, 157, 158, 160, 175, 200, 224, 280, 314, 316, 350, 395, 400, 553, 560, 628, 632, 700, 785, 790, 800, 1099, 1106, 1120, 1256, 1264, 1400, 1570, 1580, 1975, 2198, 2212, 2512, 2528, 2765, 2800, 3140, 3160, 3925, 3950, 4396, 4424, 5024, 5495, 5530, 5600, 6280, 6320, 7850, 7900, 8792, 8848, 10990, 11060, 12403, 12560, 12640, 13825, 15700, 15800, 17584, 17696, 21980, 22120, 24806, 25120, 27475, 27650, 31400, 31600, 35168, 43960, 44240, 49612, 54950, 55300, 62015, 62800, 63200, 86821, 87920, 88480, 99224, 109900, 110600, 124030, 125600, 173642, 175840, 198448, 219800, 221200, 248060, 310075, 347284, 396896, 434105, 439600, 442400, 496120, 620150, 694568, 868210, 879200, 992240, 1240300, 1389136, 1736420, 1984480, 2170525, 2480600, 2778272, 3472840, 4341050, 4961200, 6945680, 8682100, 9922400, 13891360, 17364200, 34728400, 69456800]

約数ペア:

[(1, 69456800), (2, 34728400), (4, 17364200), (5, 13891360), (7, 9922400), (8, 8682100), (10, 6945680), (14, 4961200), (16, 4341050), (20, 3472840), (25, 2778272), (28, 2480600), (32, 2170525), (35, 1984480), (40, 1736420), (50, 1389136), (56, 1240300), (70, 992240), (79, 879200), (80, 868210), (100, 694568), (112, 620150), (140, 496120), (157, 442400), (158, 439600), (160, 434105), (175, 396896), (200, 347284), (224, 310075), (280, 248060), (314, 221200), (316, 219800), (350, 198448), (395, 175840), (400, 173642), (553, 125600), (560, 124030), (628, 110600), (632, 109900), (700, 99224), (785, 88480), (790, 87920), (800, 86821), (1099, 63200), (1106, 62800), (1120, 62015), (1256, 55300), (1264, 54950), (1400, 49612), (1570, 44240), (1580, 43960), (1975, 35168), (2198, 31600), (2212, 31400), (2512, 27650), (2528, 27475), (2765, 25120), (2800, 24806), (3140, 22120), (3160, 21980), (3925, 17696), (3950, 17584), (4396, 15800), (4424, 15700), (5024, 13825), (5495, 12640), (5530, 12560), (5600, 12403), (6280, 11060), (6320, 10990), (7850, 8848), (7900, 8792)]