257425984

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{6829}}^1$

素因数の和:6891

約数の個数: 56

約数和(自身を含む): 555142400

約数和(自身を除く): 297716416

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 64, 76, 124, 152, 248, 304, 496, 589, 608, 992, 1178, 1216, 1984, 2356, 4712, 6829, 9424, 13658, 18848, 27316, 37696, 54632, 109264, 129751, 211699, 218528, 259502, 423398, 437056, 519004, 846796, 1038008, 1693592, 2076016, 3387184, 4022281, 4152032, 6774368, 8044562, 8304064, 13548736, 16089124, 32178248, 64356496, 128712992, 257425984]

約数ペア:

[(1, 257425984), (2, 128712992), (4, 64356496), (8, 32178248), (16, 16089124), (19, 13548736), (31, 8304064), (32, 8044562), (38, 6774368), (62, 4152032), (64, 4022281), (76, 3387184), (124, 2076016), (152, 1693592), (248, 1038008), (304, 846796), (496, 519004), (589, 437056), (608, 423398), (992, 259502), (1178, 218528), (1216, 211699), (1984, 129751), (2356, 109264), (4712, 54632), (6829, 37696), (9424, 27316), (13658, 18848)]