81197370

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:245

約数の個数: 128

約数和(自身を含む): 228096000

約数和(自身を除く): 146898630

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 54, 62, 89, 90, 93, 109, 135, 155, 178, 186, 218, 267, 270, 279, 310, 327, 445, 465, 534, 545, 558, 654, 801, 837, 890, 930, 981, 1090, 1335, 1395, 1602, 1635, 1674, 1962, 2403, 2670, 2759, 2790, 2943, 3270, 3379, 4005, 4185, 4806, 4905, 5518, 5886, 6758, 8010, 8277, 8370, 9701, 9810, 10137, 12015, 13795, 14715, 16554, 16895, 19402, 20274, 24030, 24831, 27590, 29103, 29430, 30411, 33790, 41385, 48505, 49662, 50685, 58206, 60822, 74493, 82770, 87309, 91233, 97010, 101370, 124155, 145515, 148986, 152055, 174618, 182466, 248310, 261927, 291030, 300731, 304110, 372465, 436545, 456165, 523854, 601462, 744930, 873090, 902193, 912330, 1309635, 1503655, 1804386, 2619270, 2706579, 3007310, 4510965, 5413158, 8119737, 9021930, 13532895, 16239474, 27065790, 40598685, 81197370]

約数ペア:

[(1, 81197370), (2, 40598685), (3, 27065790), (5, 16239474), (6, 13532895), (9, 9021930), (10, 8119737), (15, 5413158), (18, 4510965), (27, 3007310), (30, 2706579), (31, 2619270), (45, 1804386), (54, 1503655), (62, 1309635), (89, 912330), (90, 902193), (93, 873090), (109, 744930), (135, 601462), (155, 523854), (178, 456165), (186, 436545), (218, 372465), (267, 304110), (270, 300731), (279, 291030), (310, 261927), (327, 248310), (445, 182466), (465, 174618), (534, 152055), (545, 148986), (558, 145515), (654, 124155), (801, 101370), (837, 97010), (890, 91233), (930, 87309), (981, 82770), (1090, 74493), (1335, 60822), (1395, 58206), (1602, 50685), (1635, 49662), (1674, 48505), (1962, 41385), (2403, 33790), (2670, 30411), (2759, 29430), (2790, 29103), (2943, 27590), (3270, 24831), (3379, 24030), (4005, 20274), (4185, 19402), (4806, 16895), (4905, 16554), (5518, 14715), (5886, 13795), (6758, 12015), (8010, 10137), (8277, 9810), (8370, 9701)]