1200420

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:56

約数の個数: 144

約数和(自身を含む): 4280640

約数和(自身を除く): 3080220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 27, 30, 36, 38, 39, 45, 52, 54, 57, 60, 65, 76, 78, 81, 90, 95, 108, 114, 117, 130, 135, 156, 162, 171, 180, 190, 195, 228, 234, 243, 247, 260, 270, 285, 324, 342, 351, 380, 390, 405, 468, 486, 494, 513, 540, 570, 585, 684, 702, 741, 780, 810, 855, 972, 988, 1026, 1053, 1140, 1170, 1215, 1235, 1404, 1482, 1539, 1620, 1710, 1755, 2052, 2106, 2223, 2340, 2430, 2470, 2565, 2964, 3078, 3159, 3420, 3510, 3705, 4212, 4446, 4617, 4860, 4940, 5130, 5265, 6156, 6318, 6669, 7020, 7410, 7695, 8892, 9234, 10260, 10530, 11115, 12636, 13338, 14820, 15390, 15795, 18468, 20007, 21060, 22230, 23085, 26676, 30780, 31590, 33345, 40014, 44460, 46170, 60021, 63180, 66690, 80028, 92340, 100035, 120042, 133380, 200070, 240084, 300105, 400140, 600210, 1200420]

約数ペア:

[(1, 1200420), (2, 600210), (3, 400140), (4, 300105), (5, 240084), (6, 200070), (9, 133380), (10, 120042), (12, 100035), (13, 92340), (15, 80028), (18, 66690), (19, 63180), (20, 60021), (26, 46170), (27, 44460), (30, 40014), (36, 33345), (38, 31590), (39, 30780), (45, 26676), (52, 23085), (54, 22230), (57, 21060), (60, 20007), (65, 18468), (76, 15795), (78, 15390), (81, 14820), (90, 13338), (95, 12636), (108, 11115), (114, 10530), (117, 10260), (130, 9234), (135, 8892), (156, 7695), (162, 7410), (171, 7020), (180, 6669), (190, 6318), (195, 6156), (228, 5265), (234, 5130), (243, 4940), (247, 4860), (260, 4617), (270, 4446), (285, 4212), (324, 3705), (342, 3510), (351, 3420), (380, 3159), (390, 3078), (405, 2964), (468, 2565), (486, 2470), (494, 2430), (513, 2340), (540, 2223), (570, 2106), (585, 2052), (684, 1755), (702, 1710), (741, 1620), (780, 1539), (810, 1482), (855, 1404), (972, 1235), (988, 1215), (1026, 1170), (1053, 1140)]