216841280

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21859}}^1$

素因数の和:21907

約数の個数: 56

約数和(自身を含む): 533034240

約数和(自身を除く): 316192960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 21859, 43718, 87436, 109295, 174872, 218590, 349744, 437180, 677629, 699488, 874360, 1355258, 1398976, 1748720, 2710516, 3388145, 3497440, 5421032, 6776290, 6994880, 10842064, 13552580, 21684128, 27105160, 43368256, 54210320, 108420640, 216841280]

約数ペア:

[(1, 216841280), (2, 108420640), (4, 54210320), (5, 43368256), (8, 27105160), (10, 21684128), (16, 13552580), (20, 10842064), (31, 6994880), (32, 6776290), (40, 5421032), (62, 3497440), (64, 3388145), (80, 2710516), (124, 1748720), (155, 1398976), (160, 1355258), (248, 874360), (310, 699488), (320, 677629), (496, 437180), (620, 349744), (992, 218590), (1240, 174872), (1984, 109295), (2480, 87436), (4960, 43718), (9920, 21859)]