40396720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:243

約数の個数: 160

約数和(自身を含む): 119992320

約数和(自身を除く): 79595600

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 80, 91, 104, 112, 124, 130, 140, 155, 179, 182, 208, 217, 248, 260, 280, 310, 358, 364, 403, 434, 455, 496, 520, 560, 620, 716, 728, 806, 868, 895, 910, 1040, 1085, 1240, 1253, 1432, 1456, 1612, 1736, 1790, 1820, 2015, 2170, 2327, 2480, 2506, 2821, 2864, 3224, 3472, 3580, 3640, 4030, 4340, 4654, 5012, 5549, 5642, 6265, 6448, 7160, 7280, 8060, 8680, 9308, 10024, 11098, 11284, 11635, 12530, 14105, 14320, 16120, 16289, 17360, 18616, 20048, 22196, 22568, 23270, 25060, 27745, 28210, 32240, 32578, 37232, 38843, 44392, 45136, 46540, 50120, 55490, 56420, 65156, 72137, 77686, 81445, 88784, 93080, 100240, 110980, 112840, 130312, 144274, 155372, 162890, 186160, 194215, 221960, 225680, 260624, 288548, 310744, 325780, 360685, 388430, 443920, 504959, 577096, 621488, 651560, 721370, 776860, 1009918, 1154192, 1303120, 1442740, 1553720, 2019836, 2524795, 2885480, 3107440, 4039672, 5049590, 5770960, 8079344, 10099180, 20198360, 40396720]

約数ペア:

[(1, 40396720), (2, 20198360), (4, 10099180), (5, 8079344), (7, 5770960), (8, 5049590), (10, 4039672), (13, 3107440), (14, 2885480), (16, 2524795), (20, 2019836), (26, 1553720), (28, 1442740), (31, 1303120), (35, 1154192), (40, 1009918), (52, 776860), (56, 721370), (62, 651560), (65, 621488), (70, 577096), (80, 504959), (91, 443920), (104, 388430), (112, 360685), (124, 325780), (130, 310744), (140, 288548), (155, 260624), (179, 225680), (182, 221960), (208, 194215), (217, 186160), (248, 162890), (260, 155372), (280, 144274), (310, 130312), (358, 112840), (364, 110980), (403, 100240), (434, 93080), (455, 88784), (496, 81445), (520, 77686), (560, 72137), (620, 65156), (716, 56420), (728, 55490), (806, 50120), (868, 46540), (895, 45136), (910, 44392), (1040, 38843), (1085, 37232), (1240, 32578), (1253, 32240), (1432, 28210), (1456, 27745), (1612, 25060), (1736, 23270), (1790, 22568), (1820, 22196), (2015, 20048), (2170, 18616), (2327, 17360), (2480, 16289), (2506, 16120), (2821, 14320), (2864, 14105), (3224, 12530), (3472, 11635), (3580, 11284), (3640, 11098), (4030, 10024), (4340, 9308), (4654, 8680), (5012, 8060), (5549, 7280), (5642, 7160), (6265, 6448)]