19290640

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:200

約数の個数: 80

約数和(自身を含む): 47050560

約数和(自身を除く): 27759920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 61, 67, 80, 118, 122, 134, 236, 244, 268, 295, 305, 335, 472, 488, 536, 590, 610, 670, 944, 976, 1072, 1180, 1220, 1340, 2360, 2440, 2680, 3599, 3953, 4087, 4720, 4880, 5360, 7198, 7906, 8174, 14396, 15812, 16348, 17995, 19765, 20435, 28792, 31624, 32696, 35990, 39530, 40870, 57584, 63248, 65392, 71980, 79060, 81740, 143960, 158120, 163480, 241133, 287920, 316240, 326960, 482266, 964532, 1205665, 1929064, 2411330, 3858128, 4822660, 9645320, 19290640]

約数ペア:

[(1, 19290640), (2, 9645320), (4, 4822660), (5, 3858128), (8, 2411330), (10, 1929064), (16, 1205665), (20, 964532), (40, 482266), (59, 326960), (61, 316240), (67, 287920), (80, 241133), (118, 163480), (122, 158120), (134, 143960), (236, 81740), (244, 79060), (268, 71980), (295, 65392), (305, 63248), (335, 57584), (472, 40870), (488, 39530), (536, 35990), (590, 32696), (610, 31624), (670, 28792), (944, 20435), (976, 19765), (1072, 17995), (1180, 16348), (1220, 15812), (1340, 14396), (2360, 8174), (2440, 7906), (2680, 7198), (3599, 5360), (3953, 4880), (4087, 4720)]