285940280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{230597}}^1$

素因数の和:230639

約数の個数: 32

約数和(自身を含む): 664122240

約数和(自身を除く): 378181960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 230597, 461194, 922388, 1152985, 1844776, 2305970, 4611940, 7148507, 9223880, 14297014, 28594028, 35742535, 57188056, 71485070, 142970140, 285940280]

約数ペア:

[(1, 285940280), (2, 142970140), (4, 71485070), (5, 57188056), (8, 35742535), (10, 28594028), (20, 14297014), (31, 9223880), (40, 7148507), (62, 4611940), (124, 2305970), (155, 1844776), (248, 1152985), (310, 922388), (620, 461194), (1240, 230597)]