31244220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:340

約数の個数: 144

約数和(自身を含む): 109706688

約数和(自身を除く): 78462468

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 137, 140, 180, 181, 210, 252, 274, 315, 362, 411, 420, 543, 548, 630, 685, 724, 822, 905, 959, 1086, 1233, 1260, 1267, 1370, 1629, 1644, 1810, 1918, 2055, 2172, 2466, 2534, 2715, 2740, 2877, 3258, 3620, 3801, 3836, 4110, 4795, 4932, 5068, 5430, 5754, 6165, 6335, 6516, 7602, 8145, 8220, 8631, 9590, 10860, 11403, 11508, 12330, 12670, 14385, 15204, 16290, 17262, 19005, 19180, 22806, 24660, 24797, 25340, 28770, 32580, 34524, 38010, 43155, 45612, 49594, 57015, 57540, 74391, 76020, 86310, 99188, 114030, 123985, 148782, 172620, 173579, 223173, 228060, 247970, 297564, 347158, 371955, 446346, 495940, 520737, 694316, 743910, 867895, 892692, 1041474, 1115865, 1487820, 1562211, 1735790, 2082948, 2231730, 2603685, 3124422, 3471580, 4463460, 5207370, 6248844, 7811055, 10414740, 15622110, 31244220]

約数ペア:

[(1, 31244220), (2, 15622110), (3, 10414740), (4, 7811055), (5, 6248844), (6, 5207370), (7, 4463460), (9, 3471580), (10, 3124422), (12, 2603685), (14, 2231730), (15, 2082948), (18, 1735790), (20, 1562211), (21, 1487820), (28, 1115865), (30, 1041474), (35, 892692), (36, 867895), (42, 743910), (45, 694316), (60, 520737), (63, 495940), (70, 446346), (84, 371955), (90, 347158), (105, 297564), (126, 247970), (137, 228060), (140, 223173), (180, 173579), (181, 172620), (210, 148782), (252, 123985), (274, 114030), (315, 99188), (362, 86310), (411, 76020), (420, 74391), (543, 57540), (548, 57015), (630, 49594), (685, 45612), (724, 43155), (822, 38010), (905, 34524), (959, 32580), (1086, 28770), (1233, 25340), (1260, 24797), (1267, 24660), (1370, 22806), (1629, 19180), (1644, 19005), (1810, 17262), (1918, 16290), (2055, 15204), (2172, 14385), (2466, 12670), (2534, 12330), (2715, 11508), (2740, 11403), (2877, 10860), (3258, 9590), (3620, 8631), (3801, 8220), (3836, 8145), (4110, 7602), (4795, 6516), (4932, 6335), (5068, 6165), (5430, 5754)]