81371072

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1097}}^1$

素因数の和:1189

約数の個数: 56

約数和(自身を含む): 172913040

約数和(自身を除く): 91541968

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 61, 64, 76, 122, 152, 244, 304, 488, 608, 976, 1097, 1159, 1216, 1952, 2194, 2318, 3904, 4388, 4636, 8776, 9272, 17552, 18544, 20843, 35104, 37088, 41686, 66917, 70208, 74176, 83372, 133834, 166744, 267668, 333488, 535336, 666976, 1070672, 1271423, 1333952, 2141344, 2542846, 4282688, 5085692, 10171384, 20342768, 40685536, 81371072]

約数ペア:

[(1, 81371072), (2, 40685536), (4, 20342768), (8, 10171384), (16, 5085692), (19, 4282688), (32, 2542846), (38, 2141344), (61, 1333952), (64, 1271423), (76, 1070672), (122, 666976), (152, 535336), (244, 333488), (304, 267668), (488, 166744), (608, 133834), (976, 83372), (1097, 74176), (1159, 70208), (1216, 66917), (1952, 41686), (2194, 37088), (2318, 35104), (3904, 20843), (4388, 18544), (4636, 17552), (8776, 9272)]