400140

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:53

約数の個数: 120

約数和(自身を含む): 1422960

約数和(自身を除く): 1022820

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, 247, 260, 270, 285, 324, 342, 351, 380, 390, 405, 468, 494, 513, 540, 570, 585, 684, 702, 741, 780, 810, 855, 988, 1026, 1053, 1140, 1170, 1235, 1404, 1482, 1539, 1620, 1710, 1755, 2052, 2106, 2223, 2340, 2470, 2565, 2964, 3078, 3420, 3510, 3705, 4212, 4446, 4940, 5130, 5265, 6156, 6669, 7020, 7410, 7695, 8892, 10260, 10530, 11115, 13338, 14820, 15390, 20007, 21060, 22230, 26676, 30780, 33345, 40014, 44460, 66690, 80028, 100035, 133380, 200070, 400140]

約数ペア:

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