18870840

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:294

約数の個数: 128

約数和(自身を含む): 63892800

約数和(自身を除く): 45021960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 101, 108, 120, 135, 173, 180, 202, 216, 270, 303, 346, 360, 404, 505, 519, 540, 606, 692, 808, 865, 909, 1010, 1038, 1080, 1212, 1384, 1515, 1557, 1730, 1818, 2020, 2076, 2424, 2595, 2727, 3030, 3114, 3460, 3636, 4040, 4152, 4545, 4671, 5190, 5454, 6060, 6228, 6920, 7272, 7785, 9090, 9342, 10380, 10908, 12120, 12456, 13635, 15570, 17473, 18180, 18684, 20760, 21816, 23355, 27270, 31140, 34946, 36360, 37368, 46710, 52419, 54540, 62280, 69892, 87365, 93420, 104838, 109080, 139784, 157257, 174730, 186840, 209676, 262095, 314514, 349460, 419352, 471771, 524190, 629028, 698920, 786285, 943542, 1048380, 1258056, 1572570, 1887084, 2096760, 2358855, 3145140, 3774168, 4717710, 6290280, 9435420, 18870840]

約数ペア:

[(1, 18870840), (2, 9435420), (3, 6290280), (4, 4717710), (5, 3774168), (6, 3145140), (8, 2358855), (9, 2096760), (10, 1887084), (12, 1572570), (15, 1258056), (18, 1048380), (20, 943542), (24, 786285), (27, 698920), (30, 629028), (36, 524190), (40, 471771), (45, 419352), (54, 349460), (60, 314514), (72, 262095), (90, 209676), (101, 186840), (108, 174730), (120, 157257), (135, 139784), (173, 109080), (180, 104838), (202, 93420), (216, 87365), (270, 69892), (303, 62280), (346, 54540), (360, 52419), (404, 46710), (505, 37368), (519, 36360), (540, 34946), (606, 31140), (692, 27270), (808, 23355), (865, 21816), (909, 20760), (1010, 18684), (1038, 18180), (1080, 17473), (1212, 15570), (1384, 13635), (1515, 12456), (1557, 12120), (1730, 10908), (1818, 10380), (2020, 9342), (2076, 9090), (2424, 7785), (2595, 7272), (2727, 6920), (3030, 6228), (3114, 6060), (3460, 5454), (3636, 5190), (4040, 4671), (4152, 4545)]