311220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:54

約数の個数: 144

約数和(自身を含む): 1223040

約数和(自身を除く): 911820

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 19, 20, 21, 26, 28, 30, 35, 36, 38, 39, 42, 45, 52, 57, 60, 63, 65, 70, 76, 78, 84, 90, 91, 95, 105, 114, 117, 126, 130, 133, 140, 156, 171, 180, 182, 190, 195, 210, 228, 234, 247, 252, 260, 266, 273, 285, 315, 342, 364, 380, 390, 399, 420, 455, 468, 494, 532, 546, 570, 585, 630, 665, 684, 741, 780, 798, 819, 855, 910, 988, 1092, 1140, 1170, 1197, 1235, 1260, 1330, 1365, 1482, 1596, 1638, 1710, 1729, 1820, 1995, 2223, 2340, 2394, 2470, 2660, 2730, 2964, 3276, 3420, 3458, 3705, 3990, 4095, 4446, 4788, 4940, 5187, 5460, 5985, 6916, 7410, 7980, 8190, 8645, 8892, 10374, 11115, 11970, 14820, 15561, 16380, 17290, 20748, 22230, 23940, 25935, 31122, 34580, 44460, 51870, 62244, 77805, 103740, 155610, 311220]

約数ペア:

[(1, 311220), (2, 155610), (3, 103740), (4, 77805), (5, 62244), (6, 51870), (7, 44460), (9, 34580), (10, 31122), (12, 25935), (13, 23940), (14, 22230), (15, 20748), (18, 17290), (19, 16380), (20, 15561), (21, 14820), (26, 11970), (28, 11115), (30, 10374), (35, 8892), (36, 8645), (38, 8190), (39, 7980), (42, 7410), (45, 6916), (52, 5985), (57, 5460), (60, 5187), (63, 4940), (65, 4788), (70, 4446), (76, 4095), (78, 3990), (84, 3705), (90, 3458), (91, 3420), (95, 3276), (105, 2964), (114, 2730), (117, 2660), (126, 2470), (130, 2394), (133, 2340), (140, 2223), (156, 1995), (171, 1820), (180, 1729), (182, 1710), (190, 1638), (195, 1596), (210, 1482), (228, 1365), (234, 1330), (247, 1260), (252, 1235), (260, 1197), (266, 1170), (273, 1140), (285, 1092), (315, 988), (342, 910), (364, 855), (380, 819), (390, 798), (399, 780), (420, 741), (455, 684), (468, 665), (494, 630), (532, 585), (546, 570)]