19521900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:328

約数の個数: 108

約数和(自身を含む): 62062000

約数和(自身を除く): 42540100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 109, 150, 180, 199, 218, 225, 300, 327, 398, 436, 450, 545, 597, 654, 796, 900, 981, 995, 1090, 1194, 1308, 1635, 1791, 1962, 1990, 2180, 2388, 2725, 2985, 3270, 3582, 3924, 3980, 4905, 4975, 5450, 5970, 6540, 7164, 8175, 8955, 9810, 9950, 10900, 11940, 14925, 16350, 17910, 19620, 19900, 21691, 24525, 29850, 32700, 35820, 43382, 44775, 49050, 59700, 65073, 86764, 89550, 98100, 108455, 130146, 179100, 195219, 216910, 260292, 325365, 390438, 433820, 542275, 650730, 780876, 976095, 1084550, 1301460, 1626825, 1952190, 2169100, 3253650, 3904380, 4880475, 6507300, 9760950, 19521900]

約数ペア:

[(1, 19521900), (2, 9760950), (3, 6507300), (4, 4880475), (5, 3904380), (6, 3253650), (9, 2169100), (10, 1952190), (12, 1626825), (15, 1301460), (18, 1084550), (20, 976095), (25, 780876), (30, 650730), (36, 542275), (45, 433820), (50, 390438), (60, 325365), (75, 260292), (90, 216910), (100, 195219), (109, 179100), (150, 130146), (180, 108455), (199, 98100), (218, 89550), (225, 86764), (300, 65073), (327, 59700), (398, 49050), (436, 44775), (450, 43382), (545, 35820), (597, 32700), (654, 29850), (796, 24525), (900, 21691), (981, 19900), (995, 19620), (1090, 17910), (1194, 16350), (1308, 14925), (1635, 11940), (1791, 10900), (1962, 9950), (1990, 9810), (2180, 8955), (2388, 8175), (2725, 7164), (2985, 6540), (3270, 5970), (3582, 5450), (3924, 4975), (3980, 4905)]