31441840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{379}}^1$

素因数の和:470

約数の個数: 80

約数和(自身を含む): 78878880

約数和(自身を除く): 47437040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 61, 68, 80, 85, 122, 136, 170, 244, 272, 305, 340, 379, 488, 610, 680, 758, 976, 1037, 1220, 1360, 1516, 1895, 2074, 2440, 3032, 3790, 4148, 4880, 5185, 6064, 6443, 7580, 8296, 10370, 12886, 15160, 16592, 20740, 23119, 25772, 30320, 32215, 41480, 46238, 51544, 64430, 82960, 92476, 103088, 115595, 128860, 184952, 231190, 257720, 369904, 393023, 462380, 515440, 786046, 924760, 1572092, 1849520, 1965115, 3144184, 3930230, 6288368, 7860460, 15720920, 31441840]

約数ペア:

[(1, 31441840), (2, 15720920), (4, 7860460), (5, 6288368), (8, 3930230), (10, 3144184), (16, 1965115), (17, 1849520), (20, 1572092), (34, 924760), (40, 786046), (61, 515440), (68, 462380), (80, 393023), (85, 369904), (122, 257720), (136, 231190), (170, 184952), (244, 128860), (272, 115595), (305, 103088), (340, 92476), (379, 82960), (488, 64430), (610, 51544), (680, 46238), (758, 41480), (976, 32215), (1037, 30320), (1220, 25772), (1360, 23119), (1516, 20740), (1895, 16592), (2074, 15160), (2440, 12886), (3032, 10370), (3790, 8296), (4148, 7580), (4880, 6443), (5185, 6064)]