490610640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157247}}^1$

素因数の和:157276

約数の個数: 80

約数和(自身を含む): 1637895168

約数和(自身を除く): 1147284528

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, 157247, 314494, 471741, 628988, 786235, 943482, 1257976, 1572470, 1886964, 2044211, 2358705, 2515952, 3144940, 3773928, 4088422, 4717410, 6132633, 6289880, 7547856, 8176844, 9434820, 10221055, 12265266, 12579760, 16353688, 18869640, 20442110, 24530532, 30663165, 32707376, 37739280, 40884220, 49061064, 61326330, 81768440, 98122128, 122652660, 163536880, 245305320, 490610640]

約数ペア:

[(1, 490610640), (2, 245305320), (3, 163536880), (4, 122652660), (5, 98122128), (6, 81768440), (8, 61326330), (10, 49061064), (12, 40884220), (13, 37739280), (15, 32707376), (16, 30663165), (20, 24530532), (24, 20442110), (26, 18869640), (30, 16353688), (39, 12579760), (40, 12265266), (48, 10221055), (52, 9434820), (60, 8176844), (65, 7547856), (78, 6289880), (80, 6132633), (104, 4717410), (120, 4088422), (130, 3773928), (156, 3144940), (195, 2515952), (208, 2358705), (240, 2044211), (260, 1886964), (312, 1572470), (390, 1257976), (520, 943482), (624, 786235), (780, 628988), (1040, 471741), (1560, 314494), (3120, 157247)]