18395648

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:129

約数の個数: 80

約数和(自身を含む): 40592640

約数和(自身を除く): 22196992

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 61, 62, 64, 76, 122, 124, 128, 152, 244, 248, 256, 304, 488, 496, 512, 589, 608, 976, 992, 1159, 1178, 1216, 1891, 1952, 1984, 2318, 2356, 2432, 3782, 3904, 3968, 4636, 4712, 4864, 7564, 7808, 7936, 9272, 9424, 9728, 15128, 15616, 15872, 18544, 18848, 30256, 31232, 35929, 37088, 37696, 60512, 71858, 74176, 75392, 121024, 143716, 148352, 150784, 242048, 287432, 296704, 301568, 484096, 574864, 593408, 968192, 1149728, 2299456, 4598912, 9197824, 18395648]

約数ペア:

[(1, 18395648), (2, 9197824), (4, 4598912), (8, 2299456), (16, 1149728), (19, 968192), (31, 593408), (32, 574864), (38, 484096), (61, 301568), (62, 296704), (64, 287432), (76, 242048), (122, 150784), (124, 148352), (128, 143716), (152, 121024), (244, 75392), (248, 74176), (256, 71858), (304, 60512), (488, 37696), (496, 37088), (512, 35929), (589, 31232), (608, 30256), (976, 18848), (992, 18544), (1159, 15872), (1178, 15616), (1216, 15128), (1891, 9728), (1952, 9424), (1984, 9272), (2318, 7936), (2356, 7808), (2432, 7564), (3782, 4864), (3904, 4712), (3968, 4636)]