20565656990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{199}}^1$

素因数の和:498

約数の個数: 128

約数和(自身を含む): 40410316800

約数和(自身を除く): 19844659810

約数列:

[1, 2, 5, 10, 31, 41, 47, 62, 82, 94, 155, 173, 199, 205, 235, 310, 346, 398, 410, 470, 865, 995, 1271, 1457, 1730, 1927, 1990, 2542, 2914, 3854, 5363, 6169, 6355, 7093, 7285, 8131, 8159, 9353, 9635, 10726, 12338, 12710, 14186, 14570, 16262, 16318, 18706, 19270, 26815, 30845, 34427, 35465, 40655, 40795, 46765, 53630, 59737, 61690, 68854, 70930, 81310, 81590, 93530, 119474, 172135, 219883, 252061, 252929, 289943, 298685, 333371, 344270, 383473, 439766, 504122, 505858, 579886, 597370, 666742, 766946, 1067237, 1099415, 1260305, 1264645, 1411507, 1449715, 1618069, 1666855, 1917365, 2134474, 2198830, 2520610, 2529290, 2823014, 2899430, 3236138, 3333710, 3834730, 5336185, 7057535, 8090345, 10334501, 10672370, 11887663, 14115070, 16180690, 20669002, 23775326, 43756717, 50160139, 51672505, 59438315, 66340829, 87513434, 100320278, 103345010, 118876630, 132681658, 218783585, 250800695, 331704145, 437567170, 501601390, 663408290, 2056565699, 4113131398, 10282828495, 20565656990]

約数ペア:

[(1, 20565656990), (2, 10282828495), (5, 4113131398), (10, 2056565699), (31, 663408290), (41, 501601390), (47, 437567170), (62, 331704145), (82, 250800695), (94, 218783585), (155, 132681658), (173, 118876630), (199, 103345010), (205, 100320278), (235, 87513434), (310, 66340829), (346, 59438315), (398, 51672505), (410, 50160139), (470, 43756717), (865, 23775326), (995, 20669002), (1271, 16180690), (1457, 14115070), (1730, 11887663), (1927, 10672370), (1990, 10334501), (2542, 8090345), (2914, 7057535), (3854, 5336185), (5363, 3834730), (6169, 3333710), (6355, 3236138), (7093, 2899430), (7285, 2823014), (8131, 2529290), (8159, 2520610), (9353, 2198830), (9635, 2134474), (10726, 1917365), (12338, 1666855), (12710, 1618069), (14186, 1449715), (14570, 1411507), (16262, 1264645), (16318, 1260305), (18706, 1099415), (19270, 1067237), (26815, 766946), (30845, 666742), (34427, 597370), (35465, 579886), (40655, 505858), (40795, 504122), (46765, 439766), (53630, 383473), (59737, 344270), (61690, 333371), (68854, 298685), (70930, 289943), (81310, 252929), (81590, 252061), (93530, 219883), (119474, 172135)]