19495140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:394

約数の個数: 144

約数和(自身を含む): 67032000

約数和(自身を除く): 47536860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 49, 57, 60, 70, 76, 84, 95, 98, 105, 114, 133, 140, 147, 190, 196, 210, 228, 245, 266, 285, 294, 349, 380, 399, 420, 490, 532, 570, 588, 665, 698, 735, 798, 931, 980, 1047, 1140, 1330, 1396, 1470, 1596, 1745, 1862, 1995, 2094, 2443, 2660, 2793, 2940, 3490, 3724, 3990, 4188, 4655, 4886, 5235, 5586, 6631, 6980, 7329, 7980, 9310, 9772, 10470, 11172, 12215, 13262, 13965, 14658, 17101, 18620, 19893, 20940, 24430, 26524, 27930, 29316, 33155, 34202, 36645, 39786, 46417, 48860, 51303, 55860, 66310, 68404, 73290, 79572, 85505, 92834, 99465, 102606, 132620, 139251, 146580, 171010, 185668, 198930, 205212, 232085, 256515, 278502, 324919, 342020, 397860, 464170, 513030, 557004, 649838, 696255, 928340, 974757, 1026060, 1299676, 1392510, 1624595, 1949514, 2785020, 3249190, 3899028, 4873785, 6498380, 9747570, 19495140]

約数ペア:

[(1, 19495140), (2, 9747570), (3, 6498380), (4, 4873785), (5, 3899028), (6, 3249190), (7, 2785020), (10, 1949514), (12, 1624595), (14, 1392510), (15, 1299676), (19, 1026060), (20, 974757), (21, 928340), (28, 696255), (30, 649838), (35, 557004), (38, 513030), (42, 464170), (49, 397860), (57, 342020), (60, 324919), (70, 278502), (76, 256515), (84, 232085), (95, 205212), (98, 198930), (105, 185668), (114, 171010), (133, 146580), (140, 139251), (147, 132620), (190, 102606), (196, 99465), (210, 92834), (228, 85505), (245, 79572), (266, 73290), (285, 68404), (294, 66310), (349, 55860), (380, 51303), (399, 48860), (420, 46417), (490, 39786), (532, 36645), (570, 34202), (588, 33155), (665, 29316), (698, 27930), (735, 26524), (798, 24430), (931, 20940), (980, 19893), (1047, 18620), (1140, 17101), (1330, 14658), (1396, 13965), (1470, 13262), (1596, 12215), (1745, 11172), (1862, 10470), (1995, 9772), (2094, 9310), (2443, 7980), (2660, 7329), (2793, 6980), (2940, 6631), (3490, 5586), (3724, 5235), (3990, 4886), (4188, 4655)]