20198360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:241

約数の個数: 128

約数和(自身を含む): 58060800

約数和(自身を除く): 37862440

約数列:

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

約数ペア:

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