21292160

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:158

約数の個数: 128

約数和(自身を含む): 57283200

約数和(自身を除く): 35991040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 64, 68, 76, 80, 85, 95, 103, 128, 136, 152, 160, 170, 190, 206, 272, 304, 320, 323, 340, 380, 412, 515, 544, 608, 640, 646, 680, 760, 824, 1030, 1088, 1216, 1292, 1360, 1520, 1615, 1648, 1751, 1957, 2060, 2176, 2432, 2584, 2720, 3040, 3230, 3296, 3502, 3914, 4120, 5168, 5440, 6080, 6460, 6592, 7004, 7828, 8240, 8755, 9785, 10336, 10880, 12160, 12920, 13184, 14008, 15656, 16480, 17510, 19570, 20672, 25840, 28016, 31312, 32960, 33269, 35020, 39140, 41344, 51680, 56032, 62624, 65920, 66538, 70040, 78280, 103360, 112064, 125248, 133076, 140080, 156560, 166345, 206720, 224128, 250496, 266152, 280160, 313120, 332690, 532304, 560320, 626240, 665380, 1064608, 1120640, 1252480, 1330760, 2129216, 2661520, 4258432, 5323040, 10646080, 21292160]

約数ペア:

[(1, 21292160), (2, 10646080), (4, 5323040), (5, 4258432), (8, 2661520), (10, 2129216), (16, 1330760), (17, 1252480), (19, 1120640), (20, 1064608), (32, 665380), (34, 626240), (38, 560320), (40, 532304), (64, 332690), (68, 313120), (76, 280160), (80, 266152), (85, 250496), (95, 224128), (103, 206720), (128, 166345), (136, 156560), (152, 140080), (160, 133076), (170, 125248), (190, 112064), (206, 103360), (272, 78280), (304, 70040), (320, 66538), (323, 65920), (340, 62624), (380, 56032), (412, 51680), (515, 41344), (544, 39140), (608, 35020), (640, 33269), (646, 32960), (680, 31312), (760, 28016), (824, 25840), (1030, 20672), (1088, 19570), (1216, 17510), (1292, 16480), (1360, 15656), (1520, 14008), (1615, 13184), (1648, 12920), (1751, 12160), (1957, 10880), (2060, 10336), (2176, 9785), (2432, 8755), (2584, 8240), (2720, 7828), (3040, 7004), (3230, 6592), (3296, 6460), (3502, 6080), (3914, 5440), (4120, 5168)]