72247980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{179}}^1$

素因数の和:260

約数の個数: 144

約数和(自身を含む): 240226560

約数和(自身を除く): 167978580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 179, 186, 210, 217, 310, 358, 372, 420, 434, 465, 537, 620, 651, 716, 868, 895, 930, 961, 1074, 1085, 1253, 1302, 1790, 1860, 1922, 2148, 2170, 2506, 2604, 2685, 2883, 3255, 3580, 3759, 3844, 4340, 4805, 5012, 5370, 5549, 5766, 6265, 6510, 6727, 7518, 9610, 10740, 11098, 11532, 12530, 13020, 13454, 14415, 15036, 16647, 18795, 19220, 20181, 22196, 25060, 26908, 27745, 28830, 33294, 33635, 37590, 38843, 40362, 55490, 57660, 66588, 67270, 75180, 77686, 80724, 83235, 100905, 110980, 116529, 134540, 155372, 166470, 172019, 194215, 201810, 233058, 332940, 344038, 388430, 403620, 466116, 516057, 582645, 688076, 776860, 860095, 1032114, 1165290, 1204133, 1720190, 2064228, 2330580, 2408266, 2580285, 3440380, 3612399, 4816532, 5160570, 6020665, 7224798, 10321140, 12041330, 14449596, 18061995, 24082660, 36123990, 72247980]

約数ペア:

[(1, 72247980), (2, 36123990), (3, 24082660), (4, 18061995), (5, 14449596), (6, 12041330), (7, 10321140), (10, 7224798), (12, 6020665), (14, 5160570), (15, 4816532), (20, 3612399), (21, 3440380), (28, 2580285), (30, 2408266), (31, 2330580), (35, 2064228), (42, 1720190), (60, 1204133), (62, 1165290), (70, 1032114), (84, 860095), (93, 776860), (105, 688076), (124, 582645), (140, 516057), (155, 466116), (179, 403620), (186, 388430), (210, 344038), (217, 332940), (310, 233058), (358, 201810), (372, 194215), (420, 172019), (434, 166470), (465, 155372), (537, 134540), (620, 116529), (651, 110980), (716, 100905), (868, 83235), (895, 80724), (930, 77686), (961, 75180), (1074, 67270), (1085, 66588), (1253, 57660), (1302, 55490), (1790, 40362), (1860, 38843), (1922, 37590), (2148, 33635), (2170, 33294), (2506, 28830), (2604, 27745), (2685, 26908), (2883, 25060), (3255, 22196), (3580, 20181), (3759, 19220), (3844, 18795), (4340, 16647), (4805, 15036), (5012, 14415), (5370, 13454), (5549, 13020), (5766, 12530), (6265, 11532), (6510, 11098), (6727, 10740), (7518, 9610)]