402536320

素因数分解:

$2^7\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:336

約数の個数: 128

約数和(自身を含む): 1004659200

約数和(自身を除く): 602122880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 89, 128, 148, 160, 178, 185, 191, 296, 320, 356, 370, 382, 445, 592, 640, 712, 740, 764, 890, 955, 1184, 1424, 1480, 1528, 1780, 1910, 2368, 2848, 2960, 3056, 3293, 3560, 3820, 4736, 5696, 5920, 6112, 6586, 7067, 7120, 7640, 11392, 11840, 12224, 13172, 14134, 14240, 15280, 16465, 16999, 23680, 24448, 26344, 28268, 28480, 30560, 32930, 33998, 35335, 52688, 56536, 56960, 61120, 65860, 67996, 70670, 84995, 105376, 113072, 122240, 131720, 135992, 141340, 169990, 210752, 226144, 263440, 271984, 282680, 339980, 421504, 452288, 526880, 543968, 565360, 628963, 679960, 904576, 1053760, 1087936, 1130720, 1257926, 1359920, 2107520, 2175872, 2261440, 2515852, 2719840, 3144815, 4522880, 5031704, 5439680, 6289630, 10063408, 10879360, 12579260, 20126816, 25158520, 40253632, 50317040, 80507264, 100634080, 201268160, 402536320]

約数ペア:

[(1, 402536320), (2, 201268160), (4, 100634080), (5, 80507264), (8, 50317040), (10, 40253632), (16, 25158520), (20, 20126816), (32, 12579260), (37, 10879360), (40, 10063408), (64, 6289630), (74, 5439680), (80, 5031704), (89, 4522880), (128, 3144815), (148, 2719840), (160, 2515852), (178, 2261440), (185, 2175872), (191, 2107520), (296, 1359920), (320, 1257926), (356, 1130720), (370, 1087936), (382, 1053760), (445, 904576), (592, 679960), (640, 628963), (712, 565360), (740, 543968), (764, 526880), (890, 452288), (955, 421504), (1184, 339980), (1424, 282680), (1480, 271984), (1528, 263440), (1780, 226144), (1910, 210752), (2368, 169990), (2848, 141340), (2960, 135992), (3056, 131720), (3293, 122240), (3560, 113072), (3820, 105376), (4736, 84995), (5696, 70670), (5920, 67996), (6112, 65860), (6586, 61120), (7067, 56960), (7120, 56536), (7640, 52688), (11392, 35335), (11840, 33998), (12224, 32930), (13172, 30560), (14134, 28480), (14240, 28268), (15280, 26344), (16465, 24448), (16999, 23680)]