21263600

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:147

約数の個数: 120

約数和(自身を含む): 56045520

約数和(自身を除く): 34781920

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 53, 59, 68, 80, 85, 100, 106, 118, 136, 170, 200, 212, 236, 265, 272, 295, 340, 400, 424, 425, 472, 530, 590, 680, 848, 850, 901, 944, 1003, 1060, 1180, 1325, 1360, 1475, 1700, 1802, 2006, 2120, 2360, 2650, 2950, 3127, 3400, 3604, 4012, 4240, 4505, 4720, 5015, 5300, 5900, 6254, 6800, 7208, 8024, 9010, 10030, 10600, 11800, 12508, 14416, 15635, 16048, 18020, 20060, 21200, 22525, 23600, 25016, 25075, 31270, 36040, 40120, 45050, 50032, 50150, 53159, 62540, 72080, 78175, 80240, 90100, 100300, 106318, 125080, 156350, 180200, 200600, 212636, 250160, 265795, 312700, 360400, 401200, 425272, 531590, 625400, 850544, 1063180, 1250800, 1328975, 2126360, 2657950, 4252720, 5315900, 10631800, 21263600]

約数ペア:

[(1, 21263600), (2, 10631800), (4, 5315900), (5, 4252720), (8, 2657950), (10, 2126360), (16, 1328975), (17, 1250800), (20, 1063180), (25, 850544), (34, 625400), (40, 531590), (50, 425272), (53, 401200), (59, 360400), (68, 312700), (80, 265795), (85, 250160), (100, 212636), (106, 200600), (118, 180200), (136, 156350), (170, 125080), (200, 106318), (212, 100300), (236, 90100), (265, 80240), (272, 78175), (295, 72080), (340, 62540), (400, 53159), (424, 50150), (425, 50032), (472, 45050), (530, 40120), (590, 36040), (680, 31270), (848, 25075), (850, 25016), (901, 23600), (944, 22525), (1003, 21200), (1060, 20060), (1180, 18020), (1325, 16048), (1360, 15635), (1475, 14416), (1700, 12508), (1802, 11800), (2006, 10600), (2120, 10030), (2360, 9010), (2650, 8024), (2950, 7208), (3127, 6800), (3400, 6254), (3604, 5900), (4012, 5300), (4240, 5015), (4505, 4720)]