312797440

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7883}}^1$

素因数の和:7935

約数の個数: 72

約数和(自身を含む): 773515008

約数和(自身を除く): 460717568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7883, 7936, 9920, 15766, 19840, 31532, 39415, 39680, 63064, 78830, 126128, 157660, 244373, 252256, 315320, 488746, 504512, 630640, 977492, 1009024, 1221865, 1261280, 1954984, 2018048, 2443730, 2522560, 3909968, 4887460, 5045120, 7819936, 9774920, 10090240, 15639872, 19549840, 31279744, 39099680, 62559488, 78199360, 156398720, 312797440]

約数ペア:

[(1, 312797440), (2, 156398720), (4, 78199360), (5, 62559488), (8, 39099680), (10, 31279744), (16, 19549840), (20, 15639872), (31, 10090240), (32, 9774920), (40, 7819936), (62, 5045120), (64, 4887460), (80, 3909968), (124, 2522560), (128, 2443730), (155, 2018048), (160, 1954984), (248, 1261280), (256, 1221865), (310, 1009024), (320, 977492), (496, 630640), (620, 504512), (640, 488746), (992, 315320), (1240, 252256), (1280, 244373), (1984, 157660), (2480, 126128), (3968, 78830), (4960, 63064), (7883, 39680), (7936, 39415), (9920, 31532), (15766, 19840)]