398945040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127867}}^1$

素因数の和:127896

約数の個数: 80

約数和(自身を含む): 1331873088

約数和(自身を除く): 932928048

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 127867, 255734, 383601, 511468, 639335, 767202, 1022936, 1278670, 1534404, 1662271, 1918005, 2045872, 2557340, 3068808, 3324542, 3836010, 4986813, 5114680, 6137616, 6649084, 7672020, 8311355, 9973626, 10229360, 13298168, 15344040, 16622710, 19947252, 24934065, 26596336, 30688080, 33245420, 39894504, 49868130, 66490840, 79789008, 99736260, 132981680, 199472520, 398945040]

約数ペア:

[(1, 398945040), (2, 199472520), (3, 132981680), (4, 99736260), (5, 79789008), (6, 66490840), (8, 49868130), (10, 39894504), (12, 33245420), (13, 30688080), (15, 26596336), (16, 24934065), (20, 19947252), (24, 16622710), (26, 15344040), (30, 13298168), (39, 10229360), (40, 9973626), (48, 8311355), (52, 7672020), (60, 6649084), (65, 6137616), (78, 5114680), (80, 4986813), (104, 3836010), (120, 3324542), (130, 3068808), (156, 2557340), (195, 2045872), (208, 1918005), (240, 1662271), (260, 1534404), (312, 1278670), (390, 1022936), (520, 767202), (624, 639335), (780, 511468), (1040, 383601), (1560, 255734), (3120, 127867)]