256358640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3307}}^1$

素因数の和:3359

約数の個数: 160

約数和(自身を含む): 886014720

約数和(自身を除く): 629656080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 19, 20, 24, 30, 34, 38, 40, 48, 51, 57, 60, 68, 76, 80, 85, 95, 102, 114, 120, 136, 152, 170, 190, 204, 228, 240, 255, 272, 285, 304, 323, 340, 380, 408, 456, 510, 570, 646, 680, 760, 816, 912, 969, 1020, 1140, 1292, 1360, 1520, 1615, 1938, 2040, 2280, 2584, 3230, 3307, 3876, 4080, 4560, 4845, 5168, 6460, 6614, 7752, 9690, 9921, 12920, 13228, 15504, 16535, 19380, 19842, 25840, 26456, 33070, 38760, 39684, 49605, 52912, 56219, 62833, 66140, 77520, 79368, 99210, 112438, 125666, 132280, 158736, 168657, 188499, 198420, 224876, 251332, 264560, 281095, 314165, 337314, 376998, 396840, 449752, 502664, 562190, 628330, 674628, 753996, 793680, 843285, 899504, 942495, 1005328, 1068161, 1124380, 1256660, 1349256, 1507992, 1686570, 1884990, 2136322, 2248760, 2513320, 2698512, 3015984, 3204483, 3373140, 3769980, 4272644, 4497520, 5026640, 5340805, 6408966, 6746280, 7539960, 8545288, 10681610, 12817932, 13492560, 15079920, 16022415, 17090576, 21363220, 25635864, 32044830, 42726440, 51271728, 64089660, 85452880, 128179320, 256358640]

約数ペア:

[(1, 256358640), (2, 128179320), (3, 85452880), (4, 64089660), (5, 51271728), (6, 42726440), (8, 32044830), (10, 25635864), (12, 21363220), (15, 17090576), (16, 16022415), (17, 15079920), (19, 13492560), (20, 12817932), (24, 10681610), (30, 8545288), (34, 7539960), (38, 6746280), (40, 6408966), (48, 5340805), (51, 5026640), (57, 4497520), (60, 4272644), (68, 3769980), (76, 3373140), (80, 3204483), (85, 3015984), (95, 2698512), (102, 2513320), (114, 2248760), (120, 2136322), (136, 1884990), (152, 1686570), (170, 1507992), (190, 1349256), (204, 1256660), (228, 1124380), (240, 1068161), (255, 1005328), (272, 942495), (285, 899504), (304, 843285), (323, 793680), (340, 753996), (380, 674628), (408, 628330), (456, 562190), (510, 502664), (570, 449752), (646, 396840), (680, 376998), (760, 337314), (816, 314165), (912, 281095), (969, 264560), (1020, 251332), (1140, 224876), (1292, 198420), (1360, 188499), (1520, 168657), (1615, 158736), (1938, 132280), (2040, 125666), (2280, 112438), (2584, 99210), (3230, 79368), (3307, 77520), (3876, 66140), (4080, 62833), (4560, 56219), (4845, 52912), (5168, 49605), (6460, 39684), (6614, 38760), (7752, 33070), (9690, 26456), (9921, 25840), (12920, 19842), (13228, 19380), (15504, 16535)]