18804932415

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{27527}}^1$

素因数の和:27621

約数の個数: 96

約数和(自身を含む): 37103339520

約数和(自身を除く): 18298407105

約数列:

[1, 3, 5, 9, 15, 17, 19, 45, 47, 51, 57, 85, 95, 141, 153, 171, 235, 255, 285, 323, 423, 705, 765, 799, 855, 893, 969, 1615, 2115, 2397, 2679, 2907, 3995, 4465, 4845, 7191, 8037, 11985, 13395, 14535, 15181, 27527, 35955, 40185, 45543, 75905, 82581, 136629, 137635, 227715, 247743, 412905, 467959, 523013, 683145, 1238715, 1293769, 1403877, 1569039, 2339795, 2615065, 3881307, 4211631, 4707117, 6468845, 7019385, 7845195, 8891221, 11643921, 19406535, 21058155, 21994073, 23535585, 24581611, 26673663, 44456105, 58219605, 65982219, 73744833, 80020989, 109970365, 122908055, 133368315, 197946657, 221234499, 329911095, 368724165, 400104945, 417887387, 989733285, 1106172495, 1253662161, 2089436935, 3760986483, 6268310805, 18804932415]

約数ペア:

[(1, 18804932415), (3, 6268310805), (5, 3760986483), (9, 2089436935), (15, 1253662161), (17, 1106172495), (19, 989733285), (45, 417887387), (47, 400104945), (51, 368724165), (57, 329911095), (85, 221234499), (95, 197946657), (141, 133368315), (153, 122908055), (171, 109970365), (235, 80020989), (255, 73744833), (285, 65982219), (323, 58219605), (423, 44456105), (705, 26673663), (765, 24581611), (799, 23535585), (855, 21994073), (893, 21058155), (969, 19406535), (1615, 11643921), (2115, 8891221), (2397, 7845195), (2679, 7019385), (2907, 6468845), (3995, 4707117), (4465, 4211631), (4845, 3881307), (7191, 2615065), (8037, 2339795), (11985, 1569039), (13395, 1403877), (14535, 1293769), (15181, 1238715), (27527, 683145), (35955, 523013), (40185, 467959), (45543, 412905), (75905, 247743), (82581, 227715), (136629, 137635)]