245837440

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12391}}^1$

素因数の和:12441

約数の個数: 64

約数和(自身を含む): 606712320

約数和(自身を除く): 360874880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 12391, 19840, 24782, 49564, 61955, 99128, 123910, 198256, 247820, 384121, 396512, 495640, 768242, 793024, 991280, 1536484, 1586048, 1920605, 1982560, 3072968, 3841210, 3965120, 6145936, 7682420, 7930240, 12291872, 15364840, 24583744, 30729680, 49167488, 61459360, 122918720, 245837440]

約数ペア:

[(1, 245837440), (2, 122918720), (4, 61459360), (5, 49167488), (8, 30729680), (10, 24583744), (16, 15364840), (20, 12291872), (31, 7930240), (32, 7682420), (40, 6145936), (62, 3965120), (64, 3841210), (80, 3072968), (124, 1982560), (128, 1920605), (155, 1586048), (160, 1536484), (248, 991280), (310, 793024), (320, 768242), (496, 495640), (620, 396512), (640, 384121), (992, 247820), (1240, 198256), (1984, 123910), (2480, 99128), (3968, 61955), (4960, 49564), (9920, 24782), (12391, 19840)]