79875320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:277

約数の個数: 128

約数和(自身を含む): 218419200

約数和(自身を除く): 138543880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 79, 92, 115, 140, 157, 158, 161, 184, 230, 280, 314, 316, 322, 395, 460, 553, 628, 632, 644, 785, 790, 805, 920, 1099, 1106, 1256, 1288, 1570, 1580, 1610, 1817, 2198, 2212, 2765, 3140, 3160, 3220, 3611, 3634, 4396, 4424, 5495, 5530, 6280, 6440, 7222, 7268, 8792, 9085, 10990, 11060, 12403, 12719, 14444, 14536, 18055, 18170, 21980, 22120, 24806, 25277, 25438, 28888, 36110, 36340, 43960, 49612, 50554, 50876, 62015, 63595, 72220, 72680, 86821, 99224, 101108, 101752, 124030, 126385, 127190, 144440, 173642, 202216, 248060, 252770, 254380, 285269, 347284, 434105, 496120, 505540, 508760, 570538, 694568, 868210, 1011080, 1141076, 1426345, 1736420, 1996883, 2282152, 2852690, 3472840, 3993766, 5705380, 7987532, 9984415, 11410760, 15975064, 19968830, 39937660, 79875320]

約数ペア:

[(1, 79875320), (2, 39937660), (4, 19968830), (5, 15975064), (7, 11410760), (8, 9984415), (10, 7987532), (14, 5705380), (20, 3993766), (23, 3472840), (28, 2852690), (35, 2282152), (40, 1996883), (46, 1736420), (56, 1426345), (70, 1141076), (79, 1011080), (92, 868210), (115, 694568), (140, 570538), (157, 508760), (158, 505540), (161, 496120), (184, 434105), (230, 347284), (280, 285269), (314, 254380), (316, 252770), (322, 248060), (395, 202216), (460, 173642), (553, 144440), (628, 127190), (632, 126385), (644, 124030), (785, 101752), (790, 101108), (805, 99224), (920, 86821), (1099, 72680), (1106, 72220), (1256, 63595), (1288, 62015), (1570, 50876), (1580, 50554), (1610, 49612), (1817, 43960), (2198, 36340), (2212, 36110), (2765, 28888), (3140, 25438), (3160, 25277), (3220, 24806), (3611, 22120), (3634, 21980), (4396, 18170), (4424, 18055), (5495, 14536), (5530, 14444), (6280, 12719), (6440, 12403), (7222, 11060), (7268, 10990), (8792, 9085)]