19703180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1$

素因数の和:279

約数の個数: 96

約数和(自身を含む): 51287040

約数和(自身を除く): 31583860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 29, 35, 46, 58, 70, 92, 115, 116, 140, 145, 161, 203, 211, 230, 290, 322, 406, 422, 460, 580, 644, 667, 805, 812, 844, 1015, 1055, 1334, 1477, 1610, 2030, 2110, 2668, 2954, 3220, 3335, 4060, 4220, 4669, 4853, 5908, 6119, 6670, 7385, 9338, 9706, 12238, 13340, 14770, 18676, 19412, 23345, 24265, 24476, 29540, 30595, 33971, 42833, 46690, 48530, 61190, 67942, 85666, 93380, 97060, 122380, 135884, 140737, 169855, 171332, 214165, 281474, 339710, 428330, 562948, 679420, 703685, 856660, 985159, 1407370, 1970318, 2814740, 3940636, 4925795, 9851590, 19703180]

約数ペア:

[(1, 19703180), (2, 9851590), (4, 4925795), (5, 3940636), (7, 2814740), (10, 1970318), (14, 1407370), (20, 985159), (23, 856660), (28, 703685), (29, 679420), (35, 562948), (46, 428330), (58, 339710), (70, 281474), (92, 214165), (115, 171332), (116, 169855), (140, 140737), (145, 135884), (161, 122380), (203, 97060), (211, 93380), (230, 85666), (290, 67942), (322, 61190), (406, 48530), (422, 46690), (460, 42833), (580, 33971), (644, 30595), (667, 29540), (805, 24476), (812, 24265), (844, 23345), (1015, 19412), (1055, 18676), (1334, 14770), (1477, 13340), (1610, 12238), (2030, 9706), (2110, 9338), (2668, 7385), (2954, 6670), (3220, 6119), (3335, 5908), (4060, 4853), (4220, 4669)]