19687140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:250

約数の個数: 144

約数和(自身を含む): 66620736

約数和(自身を除く): 46933596

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 61, 66, 90, 99, 110, 122, 132, 163, 165, 180, 183, 198, 220, 244, 305, 326, 330, 366, 396, 489, 495, 549, 610, 652, 660, 671, 732, 815, 915, 978, 990, 1098, 1220, 1342, 1467, 1630, 1793, 1830, 1956, 1980, 2013, 2196, 2445, 2684, 2745, 2934, 3260, 3355, 3586, 3660, 4026, 4890, 5379, 5490, 5868, 6039, 6710, 7172, 7335, 8052, 8965, 9780, 9943, 10065, 10758, 10980, 12078, 13420, 14670, 16137, 17930, 19886, 20130, 21516, 24156, 26895, 29340, 29829, 30195, 32274, 35860, 39772, 40260, 49715, 53790, 59658, 60390, 64548, 80685, 89487, 99430, 107580, 109373, 119316, 120780, 149145, 161370, 178974, 198860, 218746, 298290, 322740, 328119, 357948, 437492, 447435, 546865, 596580, 656238, 894870, 984357, 1093730, 1312476, 1640595, 1789740, 1968714, 2187460, 3281190, 3937428, 4921785, 6562380, 9843570, 19687140]

約数ペア:

[(1, 19687140), (2, 9843570), (3, 6562380), (4, 4921785), (5, 3937428), (6, 3281190), (9, 2187460), (10, 1968714), (11, 1789740), (12, 1640595), (15, 1312476), (18, 1093730), (20, 984357), (22, 894870), (30, 656238), (33, 596580), (36, 546865), (44, 447435), (45, 437492), (55, 357948), (60, 328119), (61, 322740), (66, 298290), (90, 218746), (99, 198860), (110, 178974), (122, 161370), (132, 149145), (163, 120780), (165, 119316), (180, 109373), (183, 107580), (198, 99430), (220, 89487), (244, 80685), (305, 64548), (326, 60390), (330, 59658), (366, 53790), (396, 49715), (489, 40260), (495, 39772), (549, 35860), (610, 32274), (652, 30195), (660, 29829), (671, 29340), (732, 26895), (815, 24156), (915, 21516), (978, 20130), (990, 19886), (1098, 17930), (1220, 16137), (1342, 14670), (1467, 13420), (1630, 12078), (1793, 10980), (1830, 10758), (1956, 10065), (1980, 9943), (2013, 9780), (2196, 8965), (2445, 8052), (2684, 7335), (2745, 7172), (2934, 6710), (3260, 6039), (3355, 5868), (3586, 5490), (3660, 5379), (4026, 4890)]