371799280

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{661}}^1$

素因数の和:842

約数の個数: 80

約数和(自身を含む): 886550400

約数和(自身を除く): 514751120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 89, 158, 178, 316, 356, 395, 445, 632, 661, 712, 790, 890, 1264, 1322, 1424, 1580, 1780, 2644, 3160, 3305, 3560, 5288, 6320, 6610, 7031, 7120, 10576, 13220, 14062, 26440, 28124, 35155, 52219, 52880, 56248, 58829, 70310, 104438, 112496, 117658, 140620, 208876, 235316, 261095, 281240, 294145, 417752, 470632, 522190, 562480, 588290, 835504, 941264, 1044380, 1176580, 2088760, 2353160, 4177520, 4647491, 4706320, 9294982, 18589964, 23237455, 37179928, 46474910, 74359856, 92949820, 185899640, 371799280]

約数ペア:

[(1, 371799280), (2, 185899640), (4, 92949820), (5, 74359856), (8, 46474910), (10, 37179928), (16, 23237455), (20, 18589964), (40, 9294982), (79, 4706320), (80, 4647491), (89, 4177520), (158, 2353160), (178, 2088760), (316, 1176580), (356, 1044380), (395, 941264), (445, 835504), (632, 588290), (661, 562480), (712, 522190), (790, 470632), (890, 417752), (1264, 294145), (1322, 281240), (1424, 261095), (1580, 235316), (1780, 208876), (2644, 140620), (3160, 117658), (3305, 112496), (3560, 104438), (5288, 70310), (6320, 58829), (6610, 56248), (7031, 52880), (7120, 52219), (10576, 35155), (13220, 28124), (14062, 26440)]