28365190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:289

約数の個数: 64

約数和(自身を含む): 61430400

約数和(自身を除く): 33065210

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 89, 145, 157, 178, 203, 290, 314, 406, 445, 623, 785, 890, 1015, 1099, 1246, 1570, 2030, 2198, 2581, 3115, 4553, 5162, 5495, 6230, 9106, 10990, 12905, 13973, 18067, 22765, 25810, 27946, 31871, 36134, 45530, 63742, 69865, 90335, 97811, 139730, 159355, 180670, 195622, 318710, 405217, 489055, 810434, 978110, 2026085, 2836519, 4052170, 5673038, 14182595, 28365190]

約数ペア:

[(1, 28365190), (2, 14182595), (5, 5673038), (7, 4052170), (10, 2836519), (14, 2026085), (29, 978110), (35, 810434), (58, 489055), (70, 405217), (89, 318710), (145, 195622), (157, 180670), (178, 159355), (203, 139730), (290, 97811), (314, 90335), (406, 69865), (445, 63742), (623, 45530), (785, 36134), (890, 31871), (1015, 27946), (1099, 25810), (1246, 22765), (1570, 18067), (2030, 13973), (2198, 12905), (2581, 10990), (3115, 9106), (4553, 6230), (5162, 5495)]