21709400

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:261

約数の個数: 96

約数和(自身を含む): 55242000

約数和(自身を除く): 33532600

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 29, 38, 40, 50, 58, 76, 95, 100, 116, 145, 152, 190, 197, 200, 232, 290, 380, 394, 475, 551, 580, 725, 760, 788, 950, 985, 1102, 1160, 1450, 1576, 1900, 1970, 2204, 2755, 2900, 3743, 3800, 3940, 4408, 4925, 5510, 5713, 5800, 7486, 7880, 9850, 11020, 11426, 13775, 14972, 18715, 19700, 22040, 22852, 27550, 28565, 29944, 37430, 39400, 45704, 55100, 57130, 74860, 93575, 108547, 110200, 114260, 142825, 149720, 187150, 217094, 228520, 285650, 374300, 434188, 542735, 571300, 748600, 868376, 1085470, 1142600, 2170940, 2713675, 4341880, 5427350, 10854700, 21709400]

約数ペア:

[(1, 21709400), (2, 10854700), (4, 5427350), (5, 4341880), (8, 2713675), (10, 2170940), (19, 1142600), (20, 1085470), (25, 868376), (29, 748600), (38, 571300), (40, 542735), (50, 434188), (58, 374300), (76, 285650), (95, 228520), (100, 217094), (116, 187150), (145, 149720), (152, 142825), (190, 114260), (197, 110200), (200, 108547), (232, 93575), (290, 74860), (380, 57130), (394, 55100), (475, 45704), (551, 39400), (580, 37430), (725, 29944), (760, 28565), (788, 27550), (950, 22852), (985, 22040), (1102, 19700), (1160, 18715), (1450, 14972), (1576, 13775), (1900, 11426), (1970, 11020), (2204, 9850), (2755, 7880), (2900, 7486), (3743, 5800), (3800, 5713), (3940, 5510), (4408, 4925)]