28079450

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:256

約数の個数: 72

約数和(自身を含む): 61979292

約数和(自身を除く): 33899842

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 73, 98, 146, 157, 175, 245, 314, 350, 365, 490, 511, 730, 785, 1022, 1099, 1225, 1570, 1825, 2198, 2450, 2555, 3577, 3650, 3925, 5110, 5495, 7154, 7693, 7850, 10990, 11461, 12775, 15386, 17885, 22922, 25550, 27475, 35770, 38465, 54950, 57305, 76930, 80227, 89425, 114610, 160454, 178850, 192325, 286525, 384650, 401135, 561589, 573050, 802270, 1123178, 2005675, 2807945, 4011350, 5615890, 14039725, 28079450]

約数ペア:

[(1, 28079450), (2, 14039725), (5, 5615890), (7, 4011350), (10, 2807945), (14, 2005675), (25, 1123178), (35, 802270), (49, 573050), (50, 561589), (70, 401135), (73, 384650), (98, 286525), (146, 192325), (157, 178850), (175, 160454), (245, 114610), (314, 89425), (350, 80227), (365, 76930), (490, 57305), (511, 54950), (730, 38465), (785, 35770), (1022, 27475), (1099, 25550), (1225, 22922), (1570, 17885), (1825, 15386), (2198, 12775), (2450, 11461), (2555, 10990), (3577, 7850), (3650, 7693), (3925, 7154), (5110, 5495)]