21719280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{433}}^1$

素因数の和:479

約数の個数: 160

約数和(自身を含む): 77495040

約数和(自身を除く): 55775760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 19, 20, 22, 24, 30, 33, 38, 40, 44, 48, 55, 57, 60, 66, 76, 80, 88, 95, 110, 114, 120, 132, 152, 165, 176, 190, 209, 220, 228, 240, 264, 285, 304, 330, 380, 418, 433, 440, 456, 528, 570, 627, 660, 760, 836, 866, 880, 912, 1045, 1140, 1254, 1299, 1320, 1520, 1672, 1732, 2090, 2165, 2280, 2508, 2598, 2640, 3135, 3344, 3464, 4180, 4330, 4560, 4763, 5016, 5196, 6270, 6495, 6928, 8227, 8360, 8660, 9526, 10032, 10392, 12540, 12990, 14289, 16454, 16720, 17320, 19052, 20784, 23815, 24681, 25080, 25980, 28578, 32908, 34640, 38104, 41135, 47630, 49362, 50160, 51960, 57156, 65816, 71445, 76208, 82270, 90497, 95260, 98724, 103920, 114312, 123405, 131632, 142890, 164540, 180994, 190520, 197448, 228624, 246810, 271491, 285780, 329080, 361988, 381040, 394896, 452485, 493620, 542982, 571560, 658160, 723976, 904970, 987240, 1085964, 1143120, 1357455, 1447952, 1809940, 1974480, 2171928, 2714910, 3619880, 4343856, 5429820, 7239760, 10859640, 21719280]

約数ペア:

[(1, 21719280), (2, 10859640), (3, 7239760), (4, 5429820), (5, 4343856), (6, 3619880), (8, 2714910), (10, 2171928), (11, 1974480), (12, 1809940), (15, 1447952), (16, 1357455), (19, 1143120), (20, 1085964), (22, 987240), (24, 904970), (30, 723976), (33, 658160), (38, 571560), (40, 542982), (44, 493620), (48, 452485), (55, 394896), (57, 381040), (60, 361988), (66, 329080), (76, 285780), (80, 271491), (88, 246810), (95, 228624), (110, 197448), (114, 190520), (120, 180994), (132, 164540), (152, 142890), (165, 131632), (176, 123405), (190, 114312), (209, 103920), (220, 98724), (228, 95260), (240, 90497), (264, 82270), (285, 76208), (304, 71445), (330, 65816), (380, 57156), (418, 51960), (433, 50160), (440, 49362), (456, 47630), (528, 41135), (570, 38104), (627, 34640), (660, 32908), (760, 28578), (836, 25980), (866, 25080), (880, 24681), (912, 23815), (1045, 20784), (1140, 19052), (1254, 17320), (1299, 16720), (1320, 16454), (1520, 14289), (1672, 12990), (1732, 12540), (2090, 10392), (2165, 10032), (2280, 9526), (2508, 8660), (2598, 8360), (2640, 8227), (3135, 6928), (3344, 6495), (3464, 6270), (4180, 5196), (4330, 5016), (4560, 4763)]