19970528

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{167}}^1$

素因数の和:315

約数の個数: 48

約数和(自身を含む): 41023584

約数和(自身を除く): 21053056

約数列:

[1, 2, 4, 8, 16, 32, 37, 74, 101, 148, 167, 202, 296, 334, 404, 592, 668, 808, 1184, 1336, 1616, 2672, 3232, 3737, 5344, 6179, 7474, 12358, 14948, 16867, 24716, 29896, 33734, 49432, 59792, 67468, 98864, 119584, 134936, 197728, 269872, 539744, 624079, 1248158, 2496316, 4992632, 9985264, 19970528]

約数ペア:

[(1, 19970528), (2, 9985264), (4, 4992632), (8, 2496316), (16, 1248158), (32, 624079), (37, 539744), (74, 269872), (101, 197728), (148, 134936), (167, 119584), (202, 98864), (296, 67468), (334, 59792), (404, 49432), (592, 33734), (668, 29896), (808, 24716), (1184, 16867), (1336, 14948), (1616, 12358), (2672, 7474), (3232, 6179), (3737, 5344)]