21641100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:240

約数の個数: 144

約数和(自身を含む): 69995520

約数和(自身を除く): 48354420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 31, 39, 50, 52, 60, 62, 65, 75, 78, 93, 100, 124, 130, 150, 155, 156, 179, 186, 195, 260, 300, 310, 325, 358, 372, 390, 403, 465, 537, 620, 650, 716, 775, 780, 806, 895, 930, 975, 1074, 1209, 1300, 1550, 1612, 1790, 1860, 1950, 2015, 2148, 2325, 2327, 2418, 2685, 3100, 3580, 3900, 4030, 4475, 4650, 4654, 4836, 5370, 5549, 6045, 6981, 8060, 8950, 9300, 9308, 10075, 10740, 11098, 11635, 12090, 13425, 13962, 16647, 17900, 20150, 22196, 23270, 24180, 26850, 27745, 27924, 30225, 33294, 34905, 40300, 46540, 53700, 55490, 58175, 60450, 66588, 69810, 72137, 83235, 110980, 116350, 120900, 138725, 139620, 144274, 166470, 174525, 216411, 232700, 277450, 288548, 332940, 349050, 360685, 416175, 432822, 554900, 698100, 721370, 832350, 865644, 1082055, 1442740, 1664700, 1803425, 2164110, 3606850, 4328220, 5410275, 7213700, 10820550, 21641100]

約数ペア:

[(1, 21641100), (2, 10820550), (3, 7213700), (4, 5410275), (5, 4328220), (6, 3606850), (10, 2164110), (12, 1803425), (13, 1664700), (15, 1442740), (20, 1082055), (25, 865644), (26, 832350), (30, 721370), (31, 698100), (39, 554900), (50, 432822), (52, 416175), (60, 360685), (62, 349050), (65, 332940), (75, 288548), (78, 277450), (93, 232700), (100, 216411), (124, 174525), (130, 166470), (150, 144274), (155, 139620), (156, 138725), (179, 120900), (186, 116350), (195, 110980), (260, 83235), (300, 72137), (310, 69810), (325, 66588), (358, 60450), (372, 58175), (390, 55490), (403, 53700), (465, 46540), (537, 40300), (620, 34905), (650, 33294), (716, 30225), (775, 27924), (780, 27745), (806, 26850), (895, 24180), (930, 23270), (975, 22196), (1074, 20150), (1209, 17900), (1300, 16647), (1550, 13962), (1612, 13425), (1790, 12090), (1860, 11635), (1950, 11098), (2015, 10740), (2148, 10075), (2325, 9308), (2327, 9300), (2418, 8950), (2685, 8060), (3100, 6981), (3580, 6045), (3900, 5549), (4030, 5370), (4475, 4836), (4650, 4654)]