213450100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{659}}^1$

素因数の和:793

約数の個数: 72

約数和(自身を含む): 481219200

約数和(自身を除く): 267769100

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 79, 82, 100, 158, 164, 205, 316, 395, 410, 659, 790, 820, 1025, 1318, 1580, 1975, 2050, 2636, 3239, 3295, 3950, 4100, 6478, 6590, 7900, 12956, 13180, 16195, 16475, 27019, 32390, 32950, 52061, 54038, 64780, 65900, 80975, 104122, 108076, 135095, 161950, 208244, 260305, 270190, 323900, 520610, 540380, 675475, 1041220, 1301525, 1350950, 2134501, 2603050, 2701900, 4269002, 5206100, 8538004, 10672505, 21345010, 42690020, 53362525, 106725050, 213450100]

約数ペア:

[(1, 213450100), (2, 106725050), (4, 53362525), (5, 42690020), (10, 21345010), (20, 10672505), (25, 8538004), (41, 5206100), (50, 4269002), (79, 2701900), (82, 2603050), (100, 2134501), (158, 1350950), (164, 1301525), (205, 1041220), (316, 675475), (395, 540380), (410, 520610), (659, 323900), (790, 270190), (820, 260305), (1025, 208244), (1318, 161950), (1580, 135095), (1975, 108076), (2050, 104122), (2636, 80975), (3239, 65900), (3295, 64780), (3950, 54038), (4100, 52061), (6478, 32950), (6590, 32390), (7900, 27019), (12956, 16475), (13180, 16195)]