20378203160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{601}}^1\times {\mathrm{1459}}^1$

素因数の和:2161

約数の個数: 128

約数和(自身を含む): 53157081600

約数和(自身を除く): 32778878440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 83, 140, 166, 280, 332, 415, 581, 601, 664, 830, 1162, 1202, 1459, 1660, 2324, 2404, 2905, 2918, 3005, 3320, 4207, 4648, 4808, 5810, 5836, 6010, 7295, 8414, 10213, 11620, 11672, 12020, 14590, 16828, 20426, 21035, 23240, 24040, 29180, 33656, 40852, 42070, 49883, 51065, 58360, 81704, 84140, 99766, 102130, 121097, 168280, 199532, 204260, 242194, 249415, 349181, 399064, 408520, 484388, 498830, 605485, 698362, 847679, 876859, 968776, 997660, 1210970, 1396724, 1695358, 1745905, 1753718, 1995320, 2421940, 2793448, 3390716, 3491810, 3507436, 4238395, 4384295, 4843880, 6138013, 6781432, 6983620, 7014872, 8476790, 8768590, 12276026, 13967240, 16953580, 17537180, 24552052, 30690065, 33907160, 35074360, 49104104, 61380130, 72779297, 122760260, 145558594, 245520520, 291117188, 363896485, 509455079, 582234376, 727792970, 1018910158, 1455585940, 2037820316, 2547275395, 2911171880, 4075640632, 5094550790, 10189101580, 20378203160]

約数ペア:

[(1, 20378203160), (2, 10189101580), (4, 5094550790), (5, 4075640632), (7, 2911171880), (8, 2547275395), (10, 2037820316), (14, 1455585940), (20, 1018910158), (28, 727792970), (35, 582234376), (40, 509455079), (56, 363896485), (70, 291117188), (83, 245520520), (140, 145558594), (166, 122760260), (280, 72779297), (332, 61380130), (415, 49104104), (581, 35074360), (601, 33907160), (664, 30690065), (830, 24552052), (1162, 17537180), (1202, 16953580), (1459, 13967240), (1660, 12276026), (2324, 8768590), (2404, 8476790), (2905, 7014872), (2918, 6983620), (3005, 6781432), (3320, 6138013), (4207, 4843880), (4648, 4384295), (4808, 4238395), (5810, 3507436), (5836, 3491810), (6010, 3390716), (7295, 2793448), (8414, 2421940), (10213, 1995320), (11620, 1753718), (11672, 1745905), (12020, 1695358), (14590, 1396724), (16828, 1210970), (20426, 997660), (21035, 968776), (23240, 876859), (24040, 847679), (29180, 698362), (33656, 605485), (40852, 498830), (42070, 484388), (49883, 408520), (51065, 399064), (58360, 349181), (81704, 249415), (84140, 242194), (99766, 204260), (102130, 199532), (121097, 168280)]