15121800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:324

約数の個数: 144

約数和(自身を含む): 52615680

約数和(自身を除く): 37493880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 31, 36, 40, 45, 50, 60, 62, 72, 75, 90, 93, 100, 120, 124, 150, 155, 180, 186, 200, 225, 248, 271, 279, 300, 310, 360, 372, 450, 465, 542, 558, 600, 620, 744, 775, 813, 900, 930, 1084, 1116, 1240, 1355, 1395, 1550, 1626, 1800, 1860, 2168, 2232, 2325, 2439, 2710, 2790, 3100, 3252, 3720, 4065, 4650, 4878, 5420, 5580, 6200, 6504, 6775, 6975, 8130, 8401, 9300, 9756, 10840, 11160, 12195, 13550, 13950, 16260, 16802, 18600, 19512, 20325, 24390, 25203, 27100, 27900, 32520, 33604, 40650, 42005, 48780, 50406, 54200, 55800, 60975, 67208, 75609, 81300, 84010, 97560, 100812, 121950, 126015, 151218, 162600, 168020, 201624, 210025, 243900, 252030, 302436, 336040, 378045, 420050, 487800, 504060, 604872, 630075, 756090, 840100, 1008120, 1260150, 1512180, 1680200, 1890225, 2520300, 3024360, 3780450, 5040600, 7560900, 15121800]

約数ペア:

[(1, 15121800), (2, 7560900), (3, 5040600), (4, 3780450), (5, 3024360), (6, 2520300), (8, 1890225), (9, 1680200), (10, 1512180), (12, 1260150), (15, 1008120), (18, 840100), (20, 756090), (24, 630075), (25, 604872), (30, 504060), (31, 487800), (36, 420050), (40, 378045), (45, 336040), (50, 302436), (60, 252030), (62, 243900), (72, 210025), (75, 201624), (90, 168020), (93, 162600), (100, 151218), (120, 126015), (124, 121950), (150, 100812), (155, 97560), (180, 84010), (186, 81300), (200, 75609), (225, 67208), (248, 60975), (271, 55800), (279, 54200), (300, 50406), (310, 48780), (360, 42005), (372, 40650), (450, 33604), (465, 32520), (542, 27900), (558, 27100), (600, 25203), (620, 24390), (744, 20325), (775, 19512), (813, 18600), (900, 16802), (930, 16260), (1084, 13950), (1116, 13550), (1240, 12195), (1355, 11160), (1395, 10840), (1550, 9756), (1626, 9300), (1800, 8401), (1860, 8130), (2168, 6975), (2232, 6775), (2325, 6504), (2439, 6200), (2710, 5580), (2790, 5420), (3100, 4878), (3252, 4650), (3720, 4065)]