19916325

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{619}}^1$

素因数の和:659

約数の個数: 72

約数和(自身を含む): 41976480

約数和(自身を除く): 22060155

約数列:

[1, 3, 5, 9, 11, 13, 15, 25, 33, 39, 45, 55, 65, 75, 99, 117, 143, 165, 195, 225, 275, 325, 429, 495, 585, 619, 715, 825, 975, 1287, 1857, 2145, 2475, 2925, 3095, 3575, 5571, 6435, 6809, 8047, 9285, 10725, 15475, 20427, 24141, 27855, 32175, 34045, 40235, 46425, 61281, 72423, 88517, 102135, 120705, 139275, 170225, 201175, 265551, 306405, 362115, 442585, 510675, 603525, 796653, 1327755, 1532025, 1810575, 2212925, 3983265, 6638775, 19916325]

約数ペア:

[(1, 19916325), (3, 6638775), (5, 3983265), (9, 2212925), (11, 1810575), (13, 1532025), (15, 1327755), (25, 796653), (33, 603525), (39, 510675), (45, 442585), (55, 362115), (65, 306405), (75, 265551), (99, 201175), (117, 170225), (143, 139275), (165, 120705), (195, 102135), (225, 88517), (275, 72423), (325, 61281), (429, 46425), (495, 40235), (585, 34045), (619, 32175), (715, 27855), (825, 24141), (975, 20427), (1287, 15475), (1857, 10725), (2145, 9285), (2475, 8047), (2925, 6809), (3095, 6435), (3575, 5571)]