20190228100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{389}}^1\times {\mathrm{1399}}^1$

素因数の和:1862

約数の個数: 144

約数和(自身を含む): 51184224000

約数和(自身を除く): 30993995900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 53, 70, 100, 106, 140, 175, 212, 265, 350, 371, 389, 530, 700, 742, 778, 1060, 1325, 1399, 1484, 1556, 1855, 1945, 2650, 2723, 2798, 3710, 3890, 5300, 5446, 5596, 6995, 7420, 7780, 9275, 9725, 9793, 10892, 13615, 13990, 18550, 19450, 19586, 20617, 27230, 27980, 34975, 37100, 38900, 39172, 41234, 48965, 54460, 68075, 69950, 74147, 82468, 97930, 103085, 136150, 139900, 144319, 148294, 195860, 206170, 244825, 272300, 288638, 296588, 370735, 412340, 489650, 515425, 519029, 544211, 577276, 721595, 741470, 979300, 1030850, 1038058, 1088422, 1443190, 1482940, 1853675, 2061700, 2076116, 2176844, 2595145, 2721055, 2886380, 3607975, 3707350, 3809477, 5190290, 5442110, 7215950, 7414700, 7618954, 10380580, 10884220, 12975725, 13605275, 14431900, 15237908, 19047385, 25951450, 27210550, 28843183, 38094770, 51902900, 54421100, 57686366, 76189540, 95236925, 115372732, 144215915, 190473850, 201902281, 288431830, 380947700, 403804562, 576863660, 721079575, 807609124, 1009511405, 1442159150, 2019022810, 2884318300, 4038045620, 5047557025, 10095114050, 20190228100]

約数ペア:

[(1, 20190228100), (2, 10095114050), (4, 5047557025), (5, 4038045620), (7, 2884318300), (10, 2019022810), (14, 1442159150), (20, 1009511405), (25, 807609124), (28, 721079575), (35, 576863660), (50, 403804562), (53, 380947700), (70, 288431830), (100, 201902281), (106, 190473850), (140, 144215915), (175, 115372732), (212, 95236925), (265, 76189540), (350, 57686366), (371, 54421100), (389, 51902900), (530, 38094770), (700, 28843183), (742, 27210550), (778, 25951450), (1060, 19047385), (1325, 15237908), (1399, 14431900), (1484, 13605275), (1556, 12975725), (1855, 10884220), (1945, 10380580), (2650, 7618954), (2723, 7414700), (2798, 7215950), (3710, 5442110), (3890, 5190290), (5300, 3809477), (5446, 3707350), (5596, 3607975), (6995, 2886380), (7420, 2721055), (7780, 2595145), (9275, 2176844), (9725, 2076116), (9793, 2061700), (10892, 1853675), (13615, 1482940), (13990, 1443190), (18550, 1088422), (19450, 1038058), (19586, 1030850), (20617, 979300), (27230, 741470), (27980, 721595), (34975, 577276), (37100, 544211), (38900, 519029), (39172, 515425), (41234, 489650), (48965, 412340), (54460, 370735), (68075, 296588), (69950, 288638), (74147, 272300), (82468, 244825), (97930, 206170), (103085, 195860), (136150, 148294), (139900, 144319)]