256622960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:487

約数の個数: 160

約数和(自身を含む): 702812160

約数和(自身を除く): 446189200

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 31, 40, 44, 46, 55, 62, 80, 88, 92, 110, 115, 124, 155, 176, 184, 220, 230, 248, 253, 310, 341, 368, 409, 440, 460, 496, 506, 620, 682, 713, 818, 880, 920, 1012, 1240, 1265, 1364, 1426, 1636, 1705, 1840, 2024, 2045, 2480, 2530, 2728, 2852, 3272, 3410, 3565, 4048, 4090, 4499, 5060, 5456, 5704, 6544, 6820, 7130, 7843, 8180, 8998, 9407, 10120, 11408, 12679, 13640, 14260, 15686, 16360, 17996, 18814, 20240, 22495, 25358, 27280, 28520, 31372, 32720, 35992, 37628, 39215, 44990, 47035, 50716, 57040, 62744, 63395, 71984, 75256, 78430, 89980, 94070, 101432, 103477, 125488, 126790, 139469, 150512, 156860, 179960, 188140, 202864, 206954, 253580, 278938, 291617, 313720, 359920, 376280, 413908, 507160, 517385, 557876, 583234, 627440, 697345, 752560, 827816, 1014320, 1034770, 1115752, 1166468, 1394690, 1458085, 1655632, 2069540, 2231504, 2332936, 2789380, 2916170, 3207787, 4139080, 4665872, 5578760, 5832340, 6415574, 8278160, 11157520, 11664680, 12831148, 16038935, 23329360, 25662296, 32077870, 51324592, 64155740, 128311480, 256622960]

約数ペア:

[(1, 256622960), (2, 128311480), (4, 64155740), (5, 51324592), (8, 32077870), (10, 25662296), (11, 23329360), (16, 16038935), (20, 12831148), (22, 11664680), (23, 11157520), (31, 8278160), (40, 6415574), (44, 5832340), (46, 5578760), (55, 4665872), (62, 4139080), (80, 3207787), (88, 2916170), (92, 2789380), (110, 2332936), (115, 2231504), (124, 2069540), (155, 1655632), (176, 1458085), (184, 1394690), (220, 1166468), (230, 1115752), (248, 1034770), (253, 1014320), (310, 827816), (341, 752560), (368, 697345), (409, 627440), (440, 583234), (460, 557876), (496, 517385), (506, 507160), (620, 413908), (682, 376280), (713, 359920), (818, 313720), (880, 291617), (920, 278938), (1012, 253580), (1240, 206954), (1265, 202864), (1364, 188140), (1426, 179960), (1636, 156860), (1705, 150512), (1840, 139469), (2024, 126790), (2045, 125488), (2480, 103477), (2530, 101432), (2728, 94070), (2852, 89980), (3272, 78430), (3410, 75256), (3565, 71984), (4048, 63395), (4090, 62744), (4499, 57040), (5060, 50716), (5456, 47035), (5704, 44990), (6544, 39215), (6820, 37628), (7130, 35992), (7843, 32720), (8180, 31372), (8998, 28520), (9407, 27280), (10120, 25358), (11408, 22495), (12679, 20240), (13640, 18814), (14260, 17996), (15686, 16360)]