21623280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:295

約数の個数: 160

約数和(自身を含む): 78233088

約数和(自身を除く): 56609808

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 61, 70, 80, 84, 105, 112, 120, 122, 140, 168, 183, 210, 211, 240, 244, 280, 305, 336, 366, 420, 422, 427, 488, 560, 610, 633, 732, 840, 844, 854, 915, 976, 1055, 1220, 1266, 1281, 1464, 1477, 1680, 1688, 1708, 1830, 2110, 2135, 2440, 2532, 2562, 2928, 2954, 3165, 3376, 3416, 3660, 4220, 4270, 4431, 4880, 5064, 5124, 5908, 6330, 6405, 6832, 7320, 7385, 8440, 8540, 8862, 10128, 10248, 11816, 12660, 12810, 12871, 14640, 14770, 16880, 17080, 17724, 20496, 22155, 23632, 25320, 25620, 25742, 29540, 34160, 35448, 38613, 44310, 50640, 51240, 51484, 59080, 64355, 70896, 77226, 88620, 90097, 102480, 102968, 118160, 128710, 154452, 177240, 180194, 193065, 205936, 257420, 270291, 308904, 354480, 360388, 386130, 450485, 514840, 540582, 617808, 720776, 772260, 900970, 1029680, 1081164, 1351455, 1441552, 1544520, 1801940, 2162328, 2702910, 3089040, 3603880, 4324656, 5405820, 7207760, 10811640, 21623280]

約数ペア:

[(1, 21623280), (2, 10811640), (3, 7207760), (4, 5405820), (5, 4324656), (6, 3603880), (7, 3089040), (8, 2702910), (10, 2162328), (12, 1801940), (14, 1544520), (15, 1441552), (16, 1351455), (20, 1081164), (21, 1029680), (24, 900970), (28, 772260), (30, 720776), (35, 617808), (40, 540582), (42, 514840), (48, 450485), (56, 386130), (60, 360388), (61, 354480), (70, 308904), (80, 270291), (84, 257420), (105, 205936), (112, 193065), (120, 180194), (122, 177240), (140, 154452), (168, 128710), (183, 118160), (210, 102968), (211, 102480), (240, 90097), (244, 88620), (280, 77226), (305, 70896), (336, 64355), (366, 59080), (420, 51484), (422, 51240), (427, 50640), (488, 44310), (560, 38613), (610, 35448), (633, 34160), (732, 29540), (840, 25742), (844, 25620), (854, 25320), (915, 23632), (976, 22155), (1055, 20496), (1220, 17724), (1266, 17080), (1281, 16880), (1464, 14770), (1477, 14640), (1680, 12871), (1688, 12810), (1708, 12660), (1830, 11816), (2110, 10248), (2135, 10128), (2440, 8862), (2532, 8540), (2562, 8440), (2928, 7385), (2954, 7320), (3165, 6832), (3376, 6405), (3416, 6330), (3660, 5908), (4220, 5124), (4270, 5064), (4431, 4880)]