40179968

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:191

約数の個数: 72

約数和(自身を含む): 85161216

約数和(自身を除く): 44981248

約数列:

[1, 2, 4, 8, 16, 31, 32, 61, 62, 64, 83, 122, 124, 128, 166, 244, 248, 256, 332, 488, 496, 664, 976, 992, 1328, 1891, 1952, 1984, 2573, 2656, 3782, 3904, 3968, 5063, 5146, 5312, 7564, 7808, 7936, 10126, 10292, 10624, 15128, 15616, 20252, 20584, 21248, 30256, 40504, 41168, 60512, 81008, 82336, 121024, 156953, 162016, 164672, 242048, 313906, 324032, 329344, 484096, 627812, 648064, 658688, 1255624, 1296128, 2511248, 5022496, 10044992, 20089984, 40179968]

約数ペア:

[(1, 40179968), (2, 20089984), (4, 10044992), (8, 5022496), (16, 2511248), (31, 1296128), (32, 1255624), (61, 658688), (62, 648064), (64, 627812), (83, 484096), (122, 329344), (124, 324032), (128, 313906), (166, 242048), (244, 164672), (248, 162016), (256, 156953), (332, 121024), (488, 82336), (496, 81008), (664, 60512), (976, 41168), (992, 40504), (1328, 30256), (1891, 21248), (1952, 20584), (1984, 20252), (2573, 15616), (2656, 15128), (3782, 10624), (3904, 10292), (3968, 10126), (5063, 7936), (5146, 7808), (5312, 7564)]