1340640

素因数分解:

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

素因数の和:54

約数の個数: 216

約数和(自身を含む): 5601960

約数和(自身を除く): 4261320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 24, 28, 30, 32, 35, 36, 38, 40, 42, 45, 48, 49, 56, 57, 60, 63, 70, 72, 76, 80, 84, 90, 95, 96, 98, 105, 112, 114, 120, 126, 133, 140, 144, 147, 152, 160, 168, 171, 180, 190, 196, 210, 224, 228, 240, 245, 252, 266, 280, 285, 288, 294, 304, 315, 336, 342, 360, 380, 392, 399, 420, 441, 456, 480, 490, 504, 532, 560, 570, 588, 608, 630, 665, 672, 684, 720, 735, 760, 784, 798, 840, 855, 882, 912, 931, 980, 1008, 1064, 1120, 1140, 1176, 1197, 1260, 1330, 1368, 1440, 1470, 1520, 1568, 1596, 1680, 1710, 1764, 1824, 1862, 1960, 1995, 2016, 2128, 2205, 2280, 2352, 2394, 2520, 2660, 2736, 2793, 2940, 3040, 3192, 3360, 3420, 3528, 3724, 3920, 3990, 4256, 4410, 4560, 4655, 4704, 4788, 5040, 5320, 5472, 5586, 5880, 5985, 6384, 6840, 7056, 7448, 7840, 7980, 8379, 8820, 9120, 9310, 9576, 10080, 10640, 11172, 11760, 11970, 12768, 13680, 13965, 14112, 14896, 15960, 16758, 17640, 18620, 19152, 21280, 22344, 23520, 23940, 27360, 27930, 29792, 31920, 33516, 35280, 37240, 38304, 41895, 44688, 47880, 55860, 63840, 67032, 70560, 74480, 83790, 89376, 95760, 111720, 134064, 148960, 167580, 191520, 223440, 268128, 335160, 446880, 670320, 1340640]

約数ペア:

[(1, 1340640), (2, 670320), (3, 446880), (4, 335160), (5, 268128), (6, 223440), (7, 191520), (8, 167580), (9, 148960), (10, 134064), (12, 111720), (14, 95760), (15, 89376), (16, 83790), (18, 74480), (19, 70560), (20, 67032), (21, 63840), (24, 55860), (28, 47880), (30, 44688), (32, 41895), (35, 38304), (36, 37240), (38, 35280), (40, 33516), (42, 31920), (45, 29792), (48, 27930), (49, 27360), (56, 23940), (57, 23520), (60, 22344), (63, 21280), (70, 19152), (72, 18620), (76, 17640), (80, 16758), (84, 15960), (90, 14896), (95, 14112), (96, 13965), (98, 13680), (105, 12768), (112, 11970), (114, 11760), (120, 11172), (126, 10640), (133, 10080), (140, 9576), (144, 9310), (147, 9120), (152, 8820), (160, 8379), (168, 7980), (171, 7840), (180, 7448), (190, 7056), (196, 6840), (210, 6384), (224, 5985), (228, 5880), (240, 5586), (245, 5472), (252, 5320), (266, 5040), (280, 4788), (285, 4704), (288, 4655), (294, 4560), (304, 4410), (315, 4256), (336, 3990), (342, 3920), (360, 3724), (380, 3528), (392, 3420), (399, 3360), (420, 3192), (441, 3040), (456, 2940), (480, 2793), (490, 2736), (504, 2660), (532, 2520), (560, 2394), (570, 2352), (588, 2280), (608, 2205), (630, 2128), (665, 2016), (672, 1995), (684, 1960), (720, 1862), (735, 1824), (760, 1764), (784, 1710), (798, 1680), (840, 1596), (855, 1568), (882, 1520), (912, 1470), (931, 1440), (980, 1368), (1008, 1330), (1064, 1260), (1120, 1197), (1140, 1176)]