20815664090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{503}}^1\times {\mathrm{521}}^1$

素因数の和:1104

約数の個数: 96

約数和(自身を含む): 41597369856

約数和(自身を除く): 20781705766

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 94, 130, 169, 235, 338, 470, 503, 521, 611, 845, 1006, 1042, 1222, 1690, 2515, 2605, 3055, 5030, 5210, 6110, 6539, 6773, 7943, 13078, 13546, 15886, 23641, 24487, 32695, 33865, 39715, 47282, 48974, 65390, 67730, 79430, 85007, 88049, 118205, 122435, 170014, 176098, 236410, 244870, 262063, 307333, 318331, 425035, 440245, 524126, 614666, 636662, 850070, 880490, 1310315, 1536665, 1591655, 2620630, 3073330, 3183310, 3406819, 3995329, 4138303, 6813638, 7990658, 8276606, 12316961, 17034095, 19976645, 20691515, 24633922, 34068190, 39953290, 41383030, 44288647, 61584805, 88577294, 123169610, 160120493, 221443235, 320240986, 442886470, 800602465, 1601204930, 2081566409, 4163132818, 10407832045, 20815664090]

約数ペア:

[(1, 20815664090), (2, 10407832045), (5, 4163132818), (10, 2081566409), (13, 1601204930), (26, 800602465), (47, 442886470), (65, 320240986), (94, 221443235), (130, 160120493), (169, 123169610), (235, 88577294), (338, 61584805), (470, 44288647), (503, 41383030), (521, 39953290), (611, 34068190), (845, 24633922), (1006, 20691515), (1042, 19976645), (1222, 17034095), (1690, 12316961), (2515, 8276606), (2605, 7990658), (3055, 6813638), (5030, 4138303), (5210, 3995329), (6110, 3406819), (6539, 3183310), (6773, 3073330), (7943, 2620630), (13078, 1591655), (13546, 1536665), (15886, 1310315), (23641, 880490), (24487, 850070), (32695, 636662), (33865, 614666), (39715, 524126), (47282, 440245), (48974, 425035), (65390, 318331), (67730, 307333), (79430, 262063), (85007, 244870), (88049, 236410), (118205, 176098), (122435, 170014)]