249855040

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{283}}^1$

素因数の和:420

約数の個数: 112

約数和(自身を含む): 623255040

約数和(自身を除く): 373400000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 89, 124, 155, 160, 178, 248, 283, 310, 320, 356, 445, 496, 566, 620, 712, 890, 992, 1132, 1240, 1415, 1424, 1780, 1984, 2264, 2480, 2759, 2830, 2848, 3560, 4528, 4960, 5518, 5660, 5696, 7120, 8773, 9056, 9920, 11036, 11320, 13795, 14240, 17546, 18112, 22072, 22640, 25187, 27590, 28480, 35092, 43865, 44144, 45280, 50374, 55180, 70184, 87730, 88288, 90560, 100748, 110360, 125935, 140368, 175460, 176576, 201496, 220720, 251870, 280736, 350920, 402992, 441440, 503740, 561472, 701840, 780797, 805984, 882880, 1007480, 1403680, 1561594, 1611968, 2014960, 2807360, 3123188, 3903985, 4029920, 6246376, 7807970, 8059840, 12492752, 15615940, 24985504, 31231880, 49971008, 62463760, 124927520, 249855040]

約数ペア:

[(1, 249855040), (2, 124927520), (4, 62463760), (5, 49971008), (8, 31231880), (10, 24985504), (16, 15615940), (20, 12492752), (31, 8059840), (32, 7807970), (40, 6246376), (62, 4029920), (64, 3903985), (80, 3123188), (89, 2807360), (124, 2014960), (155, 1611968), (160, 1561594), (178, 1403680), (248, 1007480), (283, 882880), (310, 805984), (320, 780797), (356, 701840), (445, 561472), (496, 503740), (566, 441440), (620, 402992), (712, 350920), (890, 280736), (992, 251870), (1132, 220720), (1240, 201496), (1415, 176576), (1424, 175460), (1780, 140368), (1984, 125935), (2264, 110360), (2480, 100748), (2759, 90560), (2830, 88288), (2848, 87730), (3560, 70184), (4528, 55180), (4960, 50374), (5518, 45280), (5660, 44144), (5696, 43865), (7120, 35092), (8773, 28480), (9056, 27590), (9920, 25187), (11036, 22640), (11320, 22072), (13795, 18112), (14240, 17546)]