644010780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{251}}^1$

素因数の和:460

約数の個数: 192

約数和(自身を含む): 2133734400

約数和(自身を除く): 1489723620

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 41, 42, 60, 70, 82, 84, 105, 123, 140, 149, 164, 205, 210, 246, 251, 287, 298, 410, 420, 447, 492, 502, 574, 596, 615, 745, 753, 820, 861, 894, 1004, 1043, 1148, 1230, 1255, 1435, 1490, 1506, 1722, 1757, 1788, 2086, 2235, 2460, 2510, 2870, 2980, 3012, 3129, 3444, 3514, 3765, 4172, 4305, 4470, 5020, 5215, 5271, 5740, 6109, 6258, 7028, 7530, 8610, 8785, 8940, 10291, 10430, 10542, 12218, 12516, 15060, 15645, 17220, 17570, 18327, 20582, 20860, 21084, 24436, 26355, 30545, 30873, 31290, 35140, 36654, 37399, 41164, 42763, 51455, 52710, 61090, 61746, 62580, 72037, 73308, 74798, 85526, 91635, 102910, 105420, 112197, 122180, 123492, 128289, 144074, 149596, 154365, 171052, 183270, 186995, 205820, 213815, 216111, 224394, 256578, 261793, 288148, 308730, 360185, 366540, 373990, 427630, 432222, 448788, 513156, 523586, 560985, 617460, 641445, 720370, 747980, 785379, 855260, 864444, 1047172, 1080555, 1121970, 1282890, 1308965, 1440740, 1533359, 1570758, 2161110, 2243940, 2565780, 2617930, 3066718, 3141516, 3926895, 4322220, 4600077, 5235860, 6133436, 7666795, 7853790, 9200154, 10733513, 15333590, 15707580, 18400308, 21467026, 23000385, 30667180, 32200539, 42934052, 46000770, 53667565, 64401078, 92001540, 107335130, 128802156, 161002695, 214670260, 322005390, 644010780]

約数ペア:

[(1, 644010780), (2, 322005390), (3, 214670260), (4, 161002695), (5, 128802156), (6, 107335130), (7, 92001540), (10, 64401078), (12, 53667565), (14, 46000770), (15, 42934052), (20, 32200539), (21, 30667180), (28, 23000385), (30, 21467026), (35, 18400308), (41, 15707580), (42, 15333590), (60, 10733513), (70, 9200154), (82, 7853790), (84, 7666795), (105, 6133436), (123, 5235860), (140, 4600077), (149, 4322220), (164, 3926895), (205, 3141516), (210, 3066718), (246, 2617930), (251, 2565780), (287, 2243940), (298, 2161110), (410, 1570758), (420, 1533359), (447, 1440740), (492, 1308965), (502, 1282890), (574, 1121970), (596, 1080555), (615, 1047172), (745, 864444), (753, 855260), (820, 785379), (861, 747980), (894, 720370), (1004, 641445), (1043, 617460), (1148, 560985), (1230, 523586), (1255, 513156), (1435, 448788), (1490, 432222), (1506, 427630), (1722, 373990), (1757, 366540), (1788, 360185), (2086, 308730), (2235, 288148), (2460, 261793), (2510, 256578), (2870, 224394), (2980, 216111), (3012, 213815), (3129, 205820), (3444, 186995), (3514, 183270), (3765, 171052), (4172, 154365), (4305, 149596), (4470, 144074), (5020, 128289), (5215, 123492), (5271, 122180), (5740, 112197), (6109, 105420), (6258, 102910), (7028, 91635), (7530, 85526), (8610, 74798), (8785, 73308), (8940, 72037), (10291, 62580), (10430, 61746), (10542, 61090), (12218, 52710), (12516, 51455), (15060, 42763), (15645, 41164), (17220, 37399), (17570, 36654), (18327, 35140), (20582, 31290), (20860, 30873), (21084, 30545), (24436, 26355)]