72720540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1$

素因数の和:292

約数の個数: 144

約数和(自身を含む): 231547680

約数和(自身を除く): 158827140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 61, 74, 90, 111, 122, 148, 179, 180, 183, 185, 222, 244, 305, 333, 358, 366, 370, 444, 537, 549, 555, 610, 666, 716, 732, 740, 895, 915, 1074, 1098, 1110, 1220, 1332, 1611, 1665, 1790, 1830, 2148, 2196, 2220, 2257, 2685, 2745, 3222, 3330, 3580, 3660, 4514, 5370, 5490, 6444, 6623, 6660, 6771, 8055, 9028, 10740, 10919, 10980, 11285, 13246, 13542, 16110, 19869, 20313, 21838, 22570, 26492, 27084, 32220, 32757, 33115, 33855, 39738, 40626, 43676, 45140, 54595, 59607, 65514, 66230, 67710, 79476, 81252, 98271, 99345, 101565, 109190, 119214, 131028, 132460, 135420, 163785, 196542, 198690, 203130, 218380, 238428, 298035, 327570, 393084, 397380, 404003, 406260, 491355, 596070, 655140, 808006, 982710, 1192140, 1212009, 1616012, 1965420, 2020015, 2424018, 3636027, 4040030, 4848036, 6060045, 7272054, 8080060, 12120090, 14544108, 18180135, 24240180, 36360270, 72720540]

約数ペア:

[(1, 72720540), (2, 36360270), (3, 24240180), (4, 18180135), (5, 14544108), (6, 12120090), (9, 8080060), (10, 7272054), (12, 6060045), (15, 4848036), (18, 4040030), (20, 3636027), (30, 2424018), (36, 2020015), (37, 1965420), (45, 1616012), (60, 1212009), (61, 1192140), (74, 982710), (90, 808006), (111, 655140), (122, 596070), (148, 491355), (179, 406260), (180, 404003), (183, 397380), (185, 393084), (222, 327570), (244, 298035), (305, 238428), (333, 218380), (358, 203130), (366, 198690), (370, 196542), (444, 163785), (537, 135420), (549, 132460), (555, 131028), (610, 119214), (666, 109190), (716, 101565), (732, 99345), (740, 98271), (895, 81252), (915, 79476), (1074, 67710), (1098, 66230), (1110, 65514), (1220, 59607), (1332, 54595), (1611, 45140), (1665, 43676), (1790, 40626), (1830, 39738), (2148, 33855), (2196, 33115), (2220, 32757), (2257, 32220), (2685, 27084), (2745, 26492), (3222, 22570), (3330, 21838), (3580, 20313), (3660, 19869), (4514, 16110), (5370, 13542), (5490, 13246), (6444, 11285), (6623, 10980), (6660, 10919), (6771, 10740), (8055, 9028)]