20208900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:142

約数の個数: 144

約数和(自身を含む): 62995968

約数和(自身を除く): 42787068

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 31, 41, 50, 53, 60, 62, 75, 82, 93, 100, 106, 123, 124, 150, 155, 159, 164, 186, 205, 212, 246, 265, 300, 310, 318, 372, 410, 465, 492, 530, 615, 620, 636, 775, 795, 820, 930, 1025, 1060, 1230, 1271, 1325, 1550, 1590, 1643, 1860, 2050, 2173, 2325, 2460, 2542, 2650, 3075, 3100, 3180, 3286, 3813, 3975, 4100, 4346, 4650, 4929, 5084, 5300, 6150, 6355, 6519, 6572, 7626, 7950, 8215, 8692, 9300, 9858, 10865, 12300, 12710, 13038, 15252, 15900, 16430, 19065, 19716, 21730, 24645, 25420, 26076, 31775, 32595, 32860, 38130, 41075, 43460, 49290, 54325, 63550, 65190, 67363, 76260, 82150, 95325, 98580, 108650, 123225, 127100, 130380, 134726, 162975, 164300, 190650, 202089, 217300, 246450, 269452, 325950, 336815, 381300, 404178, 492900, 651900, 673630, 808356, 1010445, 1347260, 1684075, 2020890, 3368150, 4041780, 5052225, 6736300, 10104450, 20208900]

約数ペア:

[(1, 20208900), (2, 10104450), (3, 6736300), (4, 5052225), (5, 4041780), (6, 3368150), (10, 2020890), (12, 1684075), (15, 1347260), (20, 1010445), (25, 808356), (30, 673630), (31, 651900), (41, 492900), (50, 404178), (53, 381300), (60, 336815), (62, 325950), (75, 269452), (82, 246450), (93, 217300), (100, 202089), (106, 190650), (123, 164300), (124, 162975), (150, 134726), (155, 130380), (159, 127100), (164, 123225), (186, 108650), (205, 98580), (212, 95325), (246, 82150), (265, 76260), (300, 67363), (310, 65190), (318, 63550), (372, 54325), (410, 49290), (465, 43460), (492, 41075), (530, 38130), (615, 32860), (620, 32595), (636, 31775), (775, 26076), (795, 25420), (820, 24645), (930, 21730), (1025, 19716), (1060, 19065), (1230, 16430), (1271, 15900), (1325, 15252), (1550, 13038), (1590, 12710), (1643, 12300), (1860, 10865), (2050, 9858), (2173, 9300), (2325, 8692), (2460, 8215), (2542, 7950), (2650, 7626), (3075, 6572), (3100, 6519), (3180, 6355), (3286, 6150), (3813, 5300), (3975, 5084), (4100, 4929), (4346, 4650)]