20449687545

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{313}}^1\times {\mathrm{1471}}^1$

素因数の和:1852

約数の個数: 128

約数和(自身を含む): 42597089280

約数和(自身を除く): 22147401735

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 47, 63, 105, 135, 141, 189, 235, 313, 315, 329, 423, 705, 939, 945, 987, 1269, 1471, 1565, 1645, 2115, 2191, 2817, 2961, 4413, 4695, 4935, 6345, 6573, 7355, 8451, 8883, 10297, 10955, 13239, 14085, 14711, 14805, 19719, 22065, 30891, 32865, 39717, 42255, 44133, 44415, 51485, 59157, 66195, 69137, 73555, 92673, 98595, 102977, 132399, 154455, 198585, 207411, 220665, 278019, 295785, 308931, 345685, 397197, 460423, 463365, 483959, 514885, 622233, 661995, 926793, 1037055, 1381269, 1390095, 1451877, 1544655, 1866699, 1985985, 2302115, 2419795, 2780379, 3111165, 3222961, 4143807, 4355631, 4633965, 6906345, 7259385, 9333495, 9668883, 12431421, 13066893, 13901895, 16114805, 20719035, 21639881, 21778155, 29006649, 48344415, 62157105, 64919643, 65334465, 87019947, 108199405, 145033245, 151479167, 194758929, 324598215, 435099735, 454437501, 584276787, 757395835, 973794645, 1363312503, 2272187505, 2921383935, 4089937509, 6816562515, 20449687545]

約数ペア:

[(1, 20449687545), (3, 6816562515), (5, 4089937509), (7, 2921383935), (9, 2272187505), (15, 1363312503), (21, 973794645), (27, 757395835), (35, 584276787), (45, 454437501), (47, 435099735), (63, 324598215), (105, 194758929), (135, 151479167), (141, 145033245), (189, 108199405), (235, 87019947), (313, 65334465), (315, 64919643), (329, 62157105), (423, 48344415), (705, 29006649), (939, 21778155), (945, 21639881), (987, 20719035), (1269, 16114805), (1471, 13901895), (1565, 13066893), (1645, 12431421), (2115, 9668883), (2191, 9333495), (2817, 7259385), (2961, 6906345), (4413, 4633965), (4695, 4355631), (4935, 4143807), (6345, 3222961), (6573, 3111165), (7355, 2780379), (8451, 2419795), (8883, 2302115), (10297, 1985985), (10955, 1866699), (13239, 1544655), (14085, 1451877), (14711, 1390095), (14805, 1381269), (19719, 1037055), (22065, 926793), (30891, 661995), (32865, 622233), (39717, 514885), (42255, 483959), (44133, 463365), (44415, 460423), (51485, 397197), (59157, 345685), (66195, 308931), (69137, 295785), (73555, 278019), (92673, 220665), (98595, 207411), (102977, 198585), (132399, 154455)]