20807876300

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{269}}^1\times {\mathrm{17989}}^1$

素因数の和:18315

約数の個数: 72

約数和(自身を含む): 46377500400

約数和(自身を除く): 25569624100

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 269, 430, 538, 860, 1075, 1076, 1345, 2150, 2690, 4300, 5380, 6725, 11567, 13450, 17989, 23134, 26900, 35978, 46268, 57835, 71956, 89945, 115670, 179890, 231340, 289175, 359780, 449725, 578350, 773527, 899450, 1156700, 1547054, 1798900, 3094108, 3867635, 4839041, 7735270, 9678082, 15470540, 19338175, 19356164, 24195205, 38676350, 48390410, 77352700, 96780820, 120976025, 208078763, 241952050, 416157526, 483904100, 832315052, 1040393815, 2080787630, 4161575260, 5201969075, 10403938150, 20807876300]

約数ペア:

[(1, 20807876300), (2, 10403938150), (4, 5201969075), (5, 4161575260), (10, 2080787630), (20, 1040393815), (25, 832315052), (43, 483904100), (50, 416157526), (86, 241952050), (100, 208078763), (172, 120976025), (215, 96780820), (269, 77352700), (430, 48390410), (538, 38676350), (860, 24195205), (1075, 19356164), (1076, 19338175), (1345, 15470540), (2150, 9678082), (2690, 7735270), (4300, 4839041), (5380, 3867635), (6725, 3094108), (11567, 1798900), (13450, 1547054), (17989, 1156700), (23134, 899450), (26900, 773527), (35978, 578350), (46268, 449725), (57835, 359780), (71956, 289175), (89945, 231340), (115670, 179890)]