278955960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1907}}^1$

素因数の和:1997

約数の個数: 128

約数和(自身を含む): 890196480

約数和(自身を除く): 611240520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 53, 60, 69, 92, 106, 115, 120, 138, 159, 184, 212, 230, 265, 276, 318, 345, 424, 460, 530, 552, 636, 690, 795, 920, 1060, 1219, 1272, 1380, 1590, 1907, 2120, 2438, 2760, 3180, 3657, 3814, 4876, 5721, 6095, 6360, 7314, 7628, 9535, 9752, 11442, 12190, 14628, 15256, 18285, 19070, 22884, 24380, 28605, 29256, 36570, 38140, 43861, 45768, 48760, 57210, 73140, 76280, 87722, 101071, 114420, 131583, 146280, 175444, 202142, 219305, 228840, 263166, 303213, 350888, 404284, 438610, 505355, 526332, 606426, 657915, 808568, 877220, 1010710, 1052664, 1212852, 1315830, 1516065, 1754440, 2021420, 2324633, 2425704, 2631660, 3032130, 4042840, 4649266, 5263320, 6064260, 6973899, 9298532, 11623165, 12128520, 13947798, 18597064, 23246330, 27895596, 34869495, 46492660, 55791192, 69738990, 92985320, 139477980, 278955960]

約数ペア:

[(1, 278955960), (2, 139477980), (3, 92985320), (4, 69738990), (5, 55791192), (6, 46492660), (8, 34869495), (10, 27895596), (12, 23246330), (15, 18597064), (20, 13947798), (23, 12128520), (24, 11623165), (30, 9298532), (40, 6973899), (46, 6064260), (53, 5263320), (60, 4649266), (69, 4042840), (92, 3032130), (106, 2631660), (115, 2425704), (120, 2324633), (138, 2021420), (159, 1754440), (184, 1516065), (212, 1315830), (230, 1212852), (265, 1052664), (276, 1010710), (318, 877220), (345, 808568), (424, 657915), (460, 606426), (530, 526332), (552, 505355), (636, 438610), (690, 404284), (795, 350888), (920, 303213), (1060, 263166), (1219, 228840), (1272, 219305), (1380, 202142), (1590, 175444), (1907, 146280), (2120, 131583), (2438, 114420), (2760, 101071), (3180, 87722), (3657, 76280), (3814, 73140), (4876, 57210), (5721, 48760), (6095, 45768), (6360, 43861), (7314, 38140), (7628, 36570), (9535, 29256), (9752, 28605), (11442, 24380), (12190, 22884), (14628, 19070), (15256, 18285)]