19752704

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:197

約数の個数: 72

約数和(自身を含む): 43169280

約数和(自身を除く): 23416576

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 64, 76, 124, 128, 131, 152, 248, 256, 262, 304, 496, 524, 589, 608, 992, 1048, 1178, 1216, 1984, 2096, 2356, 2432, 2489, 3968, 4061, 4192, 4712, 4864, 4978, 7936, 8122, 8384, 9424, 9956, 16244, 16768, 18848, 19912, 32488, 33536, 37696, 39824, 64976, 75392, 77159, 79648, 129952, 150784, 154318, 159296, 259904, 308636, 318592, 519808, 617272, 637184, 1039616, 1234544, 2469088, 4938176, 9876352, 19752704]

約数ペア:

[(1, 19752704), (2, 9876352), (4, 4938176), (8, 2469088), (16, 1234544), (19, 1039616), (31, 637184), (32, 617272), (38, 519808), (62, 318592), (64, 308636), (76, 259904), (124, 159296), (128, 154318), (131, 150784), (152, 129952), (248, 79648), (256, 77159), (262, 75392), (304, 64976), (496, 39824), (524, 37696), (589, 33536), (608, 32488), (992, 19912), (1048, 18848), (1178, 16768), (1216, 16244), (1984, 9956), (2096, 9424), (2356, 8384), (2432, 8122), (2489, 7936), (3968, 4978), (4061, 4864), (4192, 4712)]