645780160

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{33083}}^1$

素因数の和:33161

約数の個数: 56

約数和(自身を含む): 1563020496

約数和(自身を除く): 917240336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 160, 244, 305, 320, 488, 610, 976, 1220, 1952, 2440, 3904, 4880, 9760, 19520, 33083, 66166, 132332, 165415, 264664, 330830, 529328, 661660, 1058656, 1323320, 2018063, 2117312, 2646640, 4036126, 5293280, 8072252, 10090315, 10586560, 16144504, 20180630, 32289008, 40361260, 64578016, 80722520, 129156032, 161445040, 322890080, 645780160]

約数ペア:

[(1, 645780160), (2, 322890080), (4, 161445040), (5, 129156032), (8, 80722520), (10, 64578016), (16, 40361260), (20, 32289008), (32, 20180630), (40, 16144504), (61, 10586560), (64, 10090315), (80, 8072252), (122, 5293280), (160, 4036126), (244, 2646640), (305, 2117312), (320, 2018063), (488, 1323320), (610, 1058656), (976, 661660), (1220, 529328), (1952, 330830), (2440, 264664), (3904, 165415), (4880, 132332), (9760, 66166), (19520, 33083)]