64446720

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1291}}^1$

素因数の和:1328

約数の個数: 144

約数和(自身を含む): 221831232

約数和(自身を除く): 157384512

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 256, 260, 312, 320, 384, 390, 416, 480, 520, 624, 640, 768, 780, 832, 960, 1040, 1248, 1280, 1291, 1560, 1664, 1920, 2080, 2496, 2582, 3120, 3328, 3840, 3873, 4160, 4992, 5164, 6240, 6455, 7746, 8320, 9984, 10328, 12480, 12910, 15492, 16640, 16783, 19365, 20656, 24960, 25820, 30984, 33566, 38730, 41312, 49920, 50349, 51640, 61968, 67132, 77460, 82624, 83915, 100698, 103280, 123936, 134264, 154920, 165248, 167830, 201396, 206560, 247872, 251745, 268528, 309840, 330496, 335660, 402792, 413120, 495744, 503490, 537056, 619680, 671320, 805584, 826240, 991488, 1006980, 1074112, 1239360, 1342640, 1611168, 1652480, 2013960, 2148224, 2478720, 2685280, 3222336, 4027920, 4296448, 4957440, 5370560, 6444672, 8055840, 10741120, 12889344, 16111680, 21482240, 32223360, 64446720]

約数ペア:

[(1, 64446720), (2, 32223360), (3, 21482240), (4, 16111680), (5, 12889344), (6, 10741120), (8, 8055840), (10, 6444672), (12, 5370560), (13, 4957440), (15, 4296448), (16, 4027920), (20, 3222336), (24, 2685280), (26, 2478720), (30, 2148224), (32, 2013960), (39, 1652480), (40, 1611168), (48, 1342640), (52, 1239360), (60, 1074112), (64, 1006980), (65, 991488), (78, 826240), (80, 805584), (96, 671320), (104, 619680), (120, 537056), (128, 503490), (130, 495744), (156, 413120), (160, 402792), (192, 335660), (195, 330496), (208, 309840), (240, 268528), (256, 251745), (260, 247872), (312, 206560), (320, 201396), (384, 167830), (390, 165248), (416, 154920), (480, 134264), (520, 123936), (624, 103280), (640, 100698), (768, 83915), (780, 82624), (832, 77460), (960, 67132), (1040, 61968), (1248, 51640), (1280, 50349), (1291, 49920), (1560, 41312), (1664, 38730), (1920, 33566), (2080, 30984), (2496, 25820), (2582, 24960), (3120, 20656), (3328, 19365), (3840, 16783), (3873, 16640), (4160, 15492), (4992, 12910), (5164, 12480), (6240, 10328), (6455, 9984), (7746, 8320)]