1388660520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{4973}}^1$

素因数の和:5179

約数の個数: 128

約数和(自身を含む): 4512412800

約数和(自身を除く): 3123752280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 179, 195, 260, 312, 358, 390, 520, 537, 716, 780, 895, 1074, 1432, 1560, 1790, 2148, 2327, 2685, 3580, 4296, 4654, 4973, 5370, 6981, 7160, 9308, 9946, 10740, 11635, 13962, 14919, 18616, 19892, 21480, 23270, 24865, 27924, 29838, 34905, 39784, 46540, 49730, 55848, 59676, 64649, 69810, 74595, 93080, 99460, 119352, 129298, 139620, 149190, 193947, 198920, 258596, 279240, 298380, 323245, 387894, 517192, 596760, 646490, 775788, 890167, 969735, 1292980, 1551576, 1780334, 1939470, 2585960, 2670501, 3560668, 3878940, 4450835, 5341002, 7121336, 7757880, 8901670, 10682004, 11572171, 13352505, 17803340, 21364008, 23144342, 26705010, 34716513, 35606680, 46288684, 53410020, 57860855, 69433026, 92577368, 106820040, 115721710, 138866052, 173582565, 231443420, 277732104, 347165130, 462886840, 694330260, 1388660520]

約数ペア:

[(1, 1388660520), (2, 694330260), (3, 462886840), (4, 347165130), (5, 277732104), (6, 231443420), (8, 173582565), (10, 138866052), (12, 115721710), (13, 106820040), (15, 92577368), (20, 69433026), (24, 57860855), (26, 53410020), (30, 46288684), (39, 35606680), (40, 34716513), (52, 26705010), (60, 23144342), (65, 21364008), (78, 17803340), (104, 13352505), (120, 11572171), (130, 10682004), (156, 8901670), (179, 7757880), (195, 7121336), (260, 5341002), (312, 4450835), (358, 3878940), (390, 3560668), (520, 2670501), (537, 2585960), (716, 1939470), (780, 1780334), (895, 1551576), (1074, 1292980), (1432, 969735), (1560, 890167), (1790, 775788), (2148, 646490), (2327, 596760), (2685, 517192), (3580, 387894), (4296, 323245), (4654, 298380), (4973, 279240), (5370, 258596), (6981, 198920), (7160, 193947), (9308, 149190), (9946, 139620), (10740, 129298), (11635, 119352), (13962, 99460), (14919, 93080), (18616, 74595), (19892, 69810), (21480, 64649), (23270, 59676), (24865, 55848), (27924, 49730), (29838, 46540), (34905, 39784)]